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Bike Size Chart – How To Choose? 7 Easy Methods

Jeff Balton

Choosing the right size bicycleGetting the right bike size is crucial, there’s no doubt about that.

When you are lucky enough to test ride a bike, then the process is quite straightforward – it feels good or it doesn’t. It’s as simple as that.

But what can you do when you’re shopping online (bike shops, marketplace, Craigslist and so on)?

The answer is simple – use bike size charts!

We have various methods on how to find the right bike size based on your height and/or inseam, so let’s take a closer look at these below.

Method One: Bike Height Chart – The Easiest

This method requires your height and provides you with the proper frame size measured in inches. If you need the results in centimeters, then jump to step 2.

Mountain Bike Size Chart

Your height / Frame Size / Marker

  • 4’11″ – 5’3″ = 13 – 15 inches = X-Small
  • 5’3″ – 5’7″  = 15 – 16 inches = Small
  • 5’7″ – 5’11″ = 16 – 17 inches = Medium
  • 6’0″ – 6’2″ = 17 – 19 inches = Large
  • 6’2″ – 6’4″  = 19 – 21 inches = X-Large
  • 6’4″ and taller  = 21+ inches = XX-Large


Road Bike Size Chart

Height / Frame Size (seat tube height) / Marker

4’10”- 5’2” = 47”- 48” = XX-Small
5’2”- 5’6” = 49”- 50” = X-Small
5’3”- 5’6” = 51”- 53” = Small
5’6”- 5’9” = 54”- 55” = Medium
5’9”- 6’0” = 56”- 58” = Large
6’0”- 6’3” = 58”- 60” = X-Large
6’3”- 6’6” = 61”- 63” = XX-Large


These two are very generic charts, so we recommend always seeking more information from brands that you’re interested in.


Method Two: Calculating the bike size

  1. Take off your shoes and stand with your legs about 6″ – 8″ (15 – 20 cm) apart. Measure the height from the ground to your crotch.
  2. Be sure of the type of bicycle you want: Mountain bike, city bike or road bike. You can read about the different bike types from here.
  3. Now you can take your calculator and calculate the right size:
    Leg Inseam method


City bike – Leg inseam (cm) x 0,685 = Your frame size
Mountain bike –  Leg inseam (cm) x 0,66 = Your frame size
Road bike – Leg inseam (cm) x 0,70 = Your frame size

(If your leg inseam is 76cm, then your right mountain bike size is 50 cm (20”), road bike 53cm and city bike 52cm)


Method Three: Bike Size Chart (Advanced):

Mountain bike size chart

Rider heightLeg inseam                                                Suggested Frame Size
4`10”-5`1”148-158 cm24-29”61-73 cm< 14″XS
5`1″-5`5″158-168 cm25-30”63-76 cm15” / 16″S
5`5″-5`9″168-178 cm26-31”66-78 cm16” / 17″M
5`9″-6`0″178-185 cm27`-32`68-81 cm17″ / 18″L
6`0″-6`3″185-193 cm28`-33`71-83 cm18″ / 19″XL
6`1″-6`6″193-198 cm29`-34`73-86 cm19″ +XXL


City bike (Also commuter/hybrid bikes) size chart


Rider heightLeg inseamSuggested Frame Size
4`10”-5`1”147-155 cm24-29”61-73 cm14”XS
5`1`-5`5`155-165 cm25-30”63-76 cm15”S
5`5`-5`9`165-175 cm26-31”66-78 cm16”M
5`9`-6`0`175-183 cm27`-32`68-81 cm17″L
6`0`-6`3`183-191 cm28`-33`71-83 cm18″XL
6`1`-6`6`191-198 cm29`-34`73-86 cm19″XXL

Road bike size chart

Rider heightSuggested frame size
4`10”-5`0”148-152 cm47-48 cmXXS
5`0″-5`3″152-160 cm49-50 cmXS
5`3″-5`6″160-168 cm51-52-53 cmS
5`6″-5`9″168-175 cm54-55 cmM
5`9″-6`0″175-183 cm56-57-58 cmL
6`0″-6`3″183-191 cm58-59-60 cmXL
6`3″-6`6″191-198 cm61-62-63 cmXXL

To make it simple – Bicycle Guiders’ bike size graph.

Bike size graph by bicycle Guider

Open me!

Got the right size? Nice! And now go cycling!

Please note that frame sizes from XXS – XXL don’t have the same meaning for every manufacturer. Those sizes (like on clothing) show current model sizes.




Read next: How to fit a bike


Right Saddle HeightThe right saddle height has a very important role. If it’s too low, you won’t have enough power in your feet. In mountain bike racing, I have experienced that when the saddle falls one inch down from normal, I lose about 25-50% of my force. I better stop and let the group go, then fix it and lose 15 seconds but I do catch the group and can even get the next group ahead. So the right saddle height plays a big role!

 Need Professional Fitting Service? Order From Amazon!

The easiest way is to

  1. Lean to the wall with your elbow sitting on the bike (or let someone help you as shown on the picture)
  2. Put your leg to lowest point but parallel to the ground.
  3. Move your saddle up or down until you have a nice bend behind your knee. It should be something around 30 ° but don’t waste too much energy finding that exact angle.


Go out and ride. Does it feel good? If not, then adjust. Also, you can adjust the seat to front and rear. 

But… which brand to buy? See our Best Bike Brands

TIP: If you got the right height, mark it down with some sharp object. That’s the best size chart ever 🙂 Some bikes have centimeters marked there, then keep this in mind.


What If I Got My Bike Size Wrong?

Then ask your merchant, if you can send your bike back to get the right one. If you don’t want to do that, then you can do the following things:

  • Move your saddle to the front or rear
  • Buy a longer or shorter stem. It changes your body position
  • Buy a longer seat post


Give it time to get the feeling right. I remember when I got my first 29er mountain bike. It felt like a ship and seemed difficult to ride in narrow trails of the forest. Now I start laughing when I sit on a 26″ mountain bike because it looks so tiny.


Read Next:


  • Bob Herauf says:

    I am 6 feet 1 inch and a 33 inch inseem but I am 73 years old. I am wondering if I should get a L rather than an XL mountain so it is easier to get onto when riding on the highways. I put on 3000 miles this summer.

    • Editor says:

      Hi Bob,
      I’d say you get large because XL is for 6’2 nd above. Then get a proper bike fit. Cheers!

  • bhaskar says:


    My height is 5 feet 9 inches.
    Will a bike with 26 inches tyre and 18.5 inch frame be good for me?

    • Editor says:

      Hi Bhaskar,
      You are talking about a frame under the Large category, and the answer is yes. However, that’s not the end of the story. Make sure you fine-tune your bike fit to ensure comfort during long rides. I am talking about stem length, saddle fore and aft, etc. Also, 26 inches can be a bit smaller for your height, but to each his own. Smaller wheels mean more responsiveness.

  • Tarun says:

    Hi I am Tarun my height is 157 cms and inseam is 75 cm I would like to buy a Cradiac gunner pro cycle which has 18.5 inches frame and 700x35c tyre will it be suitable please suggest.

    • Editor says:

      Hi Tarun,
      The Cradiac gunner is a good hybrid bike. For your height and inseam, I would suggest a small frame, and unfortunately, 18.5 is too large for you. Remember that the wrong frame size can cause discomfort in the lower back and arm. You choose s small frame. For example, in our bike size chart, you fall under this: 5`1″-5`5″ 158-168 cm 25-30” 63-76 cm 15” / 16″ S

  • Tom says:

    Hi Jeff.

    What do you think is more important for choosing a road bike: inseam length or rider height? I’m 1.8m tall with an inseam of 80cm. So my height suggests I get a L but my inseam suggests I get a M. What would be better regarding comfort vs performance?

    Thanks in advance

    • Editor says:

      Hi Tom,
      Both are important; however, the rider height is more popular because you can always base the measurement on frame length and make minor adjustments (stem length, saddle fore & aft, etc.).

  • Marie says:

    Hi my name is Marie ,please can you help me out I’m only 4ft and 7inchs please can you let me know what bike size would I need to get

    • Editor says:

      Hi Marie,
      You need to get the smallest frame possible such as the XS size. Then, you also make sure to get a bike fit to ensure you are comfortable.

  • Nikola says:

    Hi Jeff,

    awesome subject, thank you for great info.
    I am in a bit of problem, I am 205cm and inseam is 102cm, it looks impossible to find proper Gravel bike.
    Best I can find is Canyon Grail 7 XXL with 63cm.
    I need another 7 cm of the bar, could I compensate that with longer seat post and stem?
    How serious problem too small gravel bike poses?

    • Editor says:

      Hi Nikola,
      Yes that is a general problem because proper frame size does not answer other issues like the length of your torso or inseam. You can get a proper bike fit with those suggestions in place.

    • Adam says:

      Google tall gravel bikes for men and click on the link from cyclingabout. He made an awesome database of bikes for us tall folks. Canyon is great I am 201cm 6’7″ and bought the endurace as my road bike. Love it. Next bike is prolly going to be a huge size 71 dutch bike since I am getting older.

    • Editor says:

      Hi Adam,
      Yes, our bikes can evolve depending on our riding preference. The important thing is that we continue to ride.

  • Mark says:

    I’m 6’7″ and my inseam is 35.5 inches (90 cm). I found a deal on a 2016 Felt F85X that I’m interested in buying. It is a 60 cm bike. Will it fit right with fine adjustments, or is it just too small?

    • Editor says:

      Hi Mark,
      I checked the suggested measurement for you. It says 73-86 cm or 19″ under XXL. So it looks like 60 is too small for you.

  • Shaikh Irshad says:

    My height is 178cms please suggest me the frame height size of the cycle.

    • Editor says:

      Hi Shaikh,
      You fall under the medium range, with frame sizes between 16” / 17″. However, I suggest you still need to get a proper bike fit after getting the right bike frame to insure everything feels comfortable.

  • Mike says:

    I am 5’5″ and looking to buy a road bike. Is the 48″ or 53″ frame a proper fit for me?

    • Editor says:

      Hi Mike,
      I’d say 48 or 50. But that’s not the end of the story. You still need proper bike fit to determine the length of your stem in relation to your reach.

  • Tony says:

    I’m looking at a bike online I’m 5’8 and the bike a fahrrod tx400 speed hub the manufacturer says the 52cm frame is for 5’9” to 6’1” is this too big for me? Even though a medium sized frame is 52cm?

    • Editor says:

      Hi Tony,
      Did you check the Road Bike size chart? It says the range is between 5`6″-5`9″ (your height range) or 168-175 cm, and the suggested frames are 54-55 cm under Medium. There are overlaps and when this happens there are minor adjustments that you can do with the stem length, saddle fore and aft as well as other factors. These factors can only come into view when you get a proper bike fit because suggested frame sizes don’t cover other factors like body shape/geometry. There are people with longer legs vs longer torsos. According to the chart, a 52 frame is a bit smaller for you.

  • XIN LI says:

    Hi, My son is 11 years old , 5’3 tall. Should we choose 26 inch or 27.50 inch trail bike for him?

    Thank you!

    • Editor says:

      Hi Xin,
      26-inch-nimble and easy to manoeuvre.
      27.5- Very popular in today’s MTB size and bigger wheels allow for a smoother ride.
      However, the wheel size has nothing to do with comfort. Pay attention to the frame size in relation to his height.

  • Salma says:

    Hi I’m 4.11 feet, inseem 29 inch. Is a 24 inch women’s bike (without crossbar) a good idea?

    • Editor says:

      Hi Salma,
      I assume you are talking about the wheel size. It is ok. However, you need to pay attention to the frame size. The 14” XS is your recommended frame size. You can do the bike fitting on top of that to make an adjustment to the proper seat height, stem length etc.

  • THANUSHKA says:

    I’m planning to buy a bike for ride and got a good deal for a road bicycle. But frame size is 52 and my height is 5’10.

    Please let me know is it the correct size and worth of buying?


    • Editor says:

      Hi Thanushka,
      You need to get a frame size around 56-57-58 cm. This range falls under Large. Then get a proper bike fit to ensure comfort on longer rides.

  • Jack says:

    What if you are in-between sizes? If you’re 176 cm? I guess what I’m really asking is, what if you choose a bike that is smaller or larger? Should I go for the larger?

    • Editor says:

      Hi Jack,
      It doesn’t matter. Find the nearest frame size; then, you can make micro-adjustments with your stem length, etc. We need a proper bike fit because our body shapes are different. The frame size is just the general indicator of what you should have. The rest is up to proper bike fit. For example, people who have a longer stem length will have lower back pain due to overextending. Looking into this can make a big difference.

    • Santa says:

      No, you should go smaller if anything. There is lots of room to fine-tune up from the ideal. Precious little to fine-tune down. IMO, the most important indicator is when you are seated firmly on the saddle do you bottom out the stroke with your heel on the pedal? If so, you will be delivering max force when your toe is clipped in. I’m speaking from road-bike experience only, if you’re mountain biking, ignore!

  • Sandy says:

    I am having issues trying to find a trike bike for my husband. He has BIG feet, size 14 that hits the front tire! Another issue is his right foot has been cut into half. He wears a shoe with an insert. What is your recommendation?

    • Editor says:

      Hi Sandy,
      This is common with bikes that are bigger than the recommended size. What’s his height? What type of riding does he prefer?

  • Katie Davis says:

    I’m 6″2 which would be a 61cm or XL, but I have a 34″ inseam and long arms, I have two Specialized road bikes 61cm fit like a glove after adding carbon rims and profile bars plus a longer stem for long fast rides, just bought a Canyon Ultimate SL CL DB ei2 power meter Crank, Renolds Carbon AR41, bike at first it felt like riding a real light school bus? Was thinking of sending it back, then I figured it’s a different style of riding, not comfortable, get low and forward bent down and it will get up fast, still don’t know if I should of got a XL, or it’s just slower than all the hype?

    • Editor says:

      Hi Katie,
      I suggest you stick with the recommended frame size and make adjustments on the stem length, handlebar sweep, fore & aft of the saddle etc. These are things that influence your quality of riding.

  • Tracy Gattie says:


    My problem is that I am 4’11” and am having a hard time finding a true gravel bike to fit my size. A local bike dealer recommended a Trek Domane AL 4 but it does not have the 40CM tires. I believe they were only 35 or 37. I have a mountain bike and we ride some pretty rocky/rough gravel and do a lot of climbing. I feel like they are just selling me a road bike (which I have as well) with a little larger tires. Do you have any suggestions?

    • Editor says:

      Hi Tracy,
      I believe you fall into this category: 4’11” – 5’3″ = 13 – 15 inches. Now if you can find a frame like that then we will move to the tires. Even if the original bike has a 35 or 37c tires, do check if the tire clearance is wide enough to fit up to 40mm tires. If you want a gravel bike that can accommodate a mountain bike size tire then you probably need to check out muster cross bikes. Gravel bikes are still road bikes after all..There are gravel tires that go up to 40mm. Look for brands like Continental, Maxxis, Kenda etc…

  • pat says:

    Great Guide! thanks
    My only problem is the mixture of Imperial and Metric measurements – is sooo confusing. I am constantly converting.

  • OWEN SMITH says:

    Hi , I am looking to purchase a road bike . I am 5′ 6.5″ , inseam measurement is 75cm . Would I be looking for a medium frame ? Thank you , Owen

    • Editor says:

      Hi Owen,
      Generally yes, that’s your recommended frame size. However, don’t forget other things to take into consideration: stem length, saddle angel, saddle fore & aft etc. A change in a basic adjustment can also affect the overall ride experience. It’s like the spiderweb principle where moving a saddle fore or aft can impact your handlebar reach etc

  • Mike says:

    I have a Stance 1 29er small and I’m planning to change my wheels to 27.5. What are the other parts to change.BTW Im 5’4″

    • Editor says:

      Hi Mike,
      Note that a 27.5” wheel will fit on a 29” frame and fork (provided the bike is designed for disc brakes). Since 27.5” wheels are smaller than the 29, it’s going to affect the geometry of the bicycle.
      A few millimeters can make a difference. So you need to watch out for:
      The reach, handlebar height, setback, saddle angle, and handlebar angle, stem length and saddle fore & aft.

  • Lee says:

    If I’m trying to determine the right frame size for a hybrid bike using method #2 above, in which category of bike of the three you list does a hybrid fit?

    1. City bike – Leg inseam (cm) x 0,685 = Your frame size
    2. Mountain bike – Leg inseam (cm) x 0,66 = Your frame size
    3. Road bike – Leg inseam (cm) x 0,70 = Your frame size

    My inseam is about 34.6″ or 87.884 cm

    If a hybrid is considered a city bike as it is using method 3, then my ideal frame size is 61.5 cm
    But if a hybrid is considered a road bike, then my ideal frame size is 61.51 cm

    Please let me know which is correct using that method.

    Thank you,

    • Editor says:

      Hi Lee,
      Either one will work. Remember that the frame size is not the end of the story. There are incremental changes that you still need to do such as the stem length, the saddle fore and aft etc. That is why bike fitting prevents pain and discomfort. If you ask me, I’d go with choosing the frame that is standard to my height, then then make changes from there. The inseam measurement is crucial for the standover fit and it is good you ask about this.

  • Ash Gill says:

    Nice, I loved that guide about bike sizing. Thanks!

  • Ruth Laud says:

    I tried to leave a message or reply but it said I was a spammer could you please get in touch with me this is concerning my my six-year-old son he is disabled but he had his bike still on it was a special kind of bike wonder if you can help me figure out how to what kind to get him now or how to go about it thank you very much I’m going to leave all my info on this is not a spam

    • Editor says:

      Hi Ruth,
      It is ok, comments are always moderated first to prevent spam. Another type of bike that you might need to look into is the trike type. I didn’t know he is 6 years old and not 36, which I am sure is a type. Below is a link to that type of bike. Check if you can find a version for children.

      Trike bike.

      General Kids bikes

  • Ruth Laud says:

    My 36 year old son had his bike stolen . It was a special bike I’m not sure what kind to get him now because it he shattered his pelvic bone shattered his tailbone and dislocated his femur bone and barely able to walk and now he can ride a bike . He was 63 now he is 6 ft 2 I don’t know what kind of bike to get him and I don’t know if I’m trying to collect money to help figure out what to do cuz that’s his only type of transportation he can’t walk very good but he can ride his bike is there anyway you can give me some suggestions where to go or how I can get some help and guiding to get him a bike and maybe help getting funded to help him get a bike thank you very much

    • Editor says:

      Hi Ruth,
      Sorry to hear about your son. Judging from his condition, he needs a bike that is not too aggressive, and also provide comfort in riding. We will be removing all sporty bikes from the equation in this scenario. I would suggest a city bike or Dutch bike type. These bikes are built for comfort and also for riding that is more laid back and upright. I will be posting links below so you can choose which ones you think suit him. Do let me know if you have more questions.

      City bike/ Dutch bike type


  • Darcy James says:

    This is a very helpful blog post. I really appreciate the efforts you’ve done for the information.

  • Amit Abhishek says:

    For me buying a bike is always so confusing and it takes longer than average. All I ask for a comfortable bike that fits just right and is within my budget but there is always some issues with right fit. I am 5ft 11 and this whole thing about calculating bike size is confusing. Then there are doubts about the right bicycle weight for my need. I hope you will continue to educate us more approaching things in a most basic manner.

    • Editor says:

      Hi Amit,
      It’s pretty simple actually. Just look at the frame closest to your size recommended in the chart. Then you can make incremental changes from there, like stem length, saddle height etc. We all have different body shapes. These numbers are just guidelines but the bike fit is still up to you.

  • Bryon says:

    Why are bike sizes in CM when posting in US ? Ive never used the Metric system except for choosing a socket while working on a Japanese Car ?

    • Editor says:

      Hi Bryon,
      We have contributors around the globe so sometimes they use their systems. Google can always covert that for you 🙂

  • Anthony Davis says:

    Such a good job and love the article! Thank you

  • Dalton Bourne says:

    If you are always on off-road travels, you need a bike more durable and heavy. So, how much does a bike weigh? The average weight of a typical road bike would be 18lbs. The road bike-style hybrid bikes weigh 26lbs while cruiser-style hybrid bikes come in 32lbs. Mountain bikes are one of the heaviest kinds. They can weigh up to 28lbs because of the extra gears that come with them. I think you can be more confident on highways when riding heavy bikes.

    • Editor says:

      Hi Dalton,
      It all boils down to preference. I know people who love to ride highways using the hardtail bikes. They love the stability and comfort. Bikes with thicker tires can stand potholes and road imperfections. Weight is a secondary concern for many people. But a lighter bike feels nimble.

    • Dalton Bourne says:

      If you prefer better acceleration and need to transport your bike from one place to another, lighter ones are your best choice.

  • John Namerow says:

    I am a stubby guy with short legs and about 5’6′ and I like this bike a lot (21 speed Shimano) (pasted from Ebay into the website slot). Do you think it will be comfortable for me? It’s 700C. Thank you very much in advance.

    PS Any thoughts on the quality of the Shimano brand?

    • Editor says:

      Hi John,
      Shimano: reliable Japanese technology. I can say that from experience. As for bikes on websites you need to check for the sizes. You belong to the medium category 54-55 cm. However, this is not the end of the story. You still need to get a proper bike fit to ensure that the stem length, crank length, saddle fore & aft etc all work for your comfort.

  • Kalavathi.s says:

    My height is 5 feets which is best&cheapest bycle

    • Editor says:

      Hi Kalavathi,
      An xs frame would suit your height. Do get a bike fit because having the right frame size is not the end of the story. Check out our entry level bikes.

  • Marvin says:

    Hi, I am 5’8 and a half. Recently bought a 16 inch frame bike with 27.5 wheels. My question is should I have bought a 17 inch frame instead?

    • Editor says:

      Hi Marvin,
      No it is ok. It is still in the medium range. Do make small adjustments to ensure you get a proper bike fit.

  • Anu says:

    I am a 4ft 10 inches tall lady having a rather hard time finding a correct sized bicycle (heritage styled, low step through) which can have a child seat fixed to the rear of the bike. My main purpose will be school drops for a 4 year old. Any recommendations regarding the frame size? Thank you.

    • Editor says:

      Hi Anu,
      This is under 14” or XS frame size. You start with that and make other adjustments with seat and stem.

  • Ronnie says:

    I am 6ft 2 and this whole thing about size calculator is confusing. How do I approach it in the most basic manner that even an uneducated person will get down to working the numbers and size easily

    • Editor says:

      Hi Ronnie,
      No need to exhaust your mind about these things. The size recommendation is just a guideline to find a suitable size of frame based on your height. The real sizing happens when you do the bike fit. For example, you are 6’2, so your recommended frame size is between 18″ / 19″ under the XL category. However this does not take into account the kind of stem length or saddle fore and aft that you should have.

  • Dalton Bourne says:

    A bicycle with insufficient reach is usually uncomfortable as it causes cramping. That’s the reason why you must measure your bike stem for optimum performance and comfort throughout the road. The first thing to do is to place your road bike against something firm. Know the length by measuring from the middle bolt of the bike’s headset top to the center of the handlebar. A bike stem length usually runs in 10 mm increments and starts from 70 mm to 140 mm. The measurements you get are possibly off by a few millimeters, you must adjust the measurement to the closest 10 mm increment.

    • Editor says:

      Hi Dalton,
      Thanks for the added input. Yes the frame size recommendation is not the end of the story.

    • Dalton Bourne says:

      Stem length is an essential aspect of bikes that can affect your body comfort and performance on the road. It is vital to know the present length of your bike stem before you can change it.

    • Editor says:

      Hi Dalton,
      That is right. We always go with the frame size as the primary step. The we move to incremental adjustments with the stem, handlebar angle, saddle fore & aft etc.

  • Sam says:

    Hi, I’ve found a bike with what seems to be an uncommon frame size/wheel size combo and have having a hard time figuring out the height range. It is a mountain bike with a 16″ frame and 29″ wheels, what would be the ideal height range for a bike of this size? Thanks!

    • Editor says:

      Hi Sam,
      Yes, the tire size can have an influence on the standover. However, if there is an issue, it’s insignificant. 16″ is for medium height riders and I have seen riders in this height that use 29″ wheels without issues. It’s a matter of preference. So I would say it is under medium: 5`5″-5`9″

  • Dora says:

    I have a long torso and feel all bunched up on my bike. The seat is at the right height but when I put my hands on the handle bars and pedal my knees are feeling strained when in full flexion. I wish I could move the wheel base apart. Is that an option?

    • Editor says:

      Hi Dora,
      The problem is not the wheel base. It is a matter of stem length and saddle fore & aft. Why not try to experiment on moving the saddle further back, and getting a longer stem. I suggest you get a bike fit that way you wont get into trouble of buying bike parts that will not solve the problem.

  • Wendell Wiggins says:

    I don’t understand the chart. I usually decide by Wheel Size not frame when buying a Road Bike. 27.5 inch is my preferred WHEEL SIZE but sometimes I see Bikes specified as 700. What does that mean? How come all the different ways of measuring the size of a bike?

    • Editor says:

      Hi Wendell,
      Let me help you with this one. No, don’t ever decide buying a bike by wheel sizes. When you see a 700, it stands for 700c which is a road bike designated wheel size. 27.5 is a mountain bike wheel size. 26 used to be the common size. Now we have 27.5 and 29. The chard is the standard base for measuring a bike frame size that is right for you. But it is not the perfect way. You still need to consider little adjustments like saddle angle, stem length etc because we all have different body shapes. For example if you stand around 5`6″-5`9″ and you want to buy a road bike, then you need a frame size around 54-55 cm which falls under medium. Then you need to follow that up with a bike fit.

  • sead says:

    Hi Guys.
    I want to buy 2 MTB for some children in Thailand. age is 8 and 11 years. Height and inner leg in Cm is 137/67 and 120/60. Since i will buy this through internet i thought its best to ask here.
    Regards Sead

    • Editor says:

      Hi Sead,
      They fall under the xs category frame size. Check if you can find an mtb for kids size. They still need fitting when they receive the bikes.

  • Indrajeet says:

    I’m 5ft 7 inches Male
    What size bike would suit me

    • Editor says:

      Hi Indrajeet,
      It depends on what bike you want. For MTB that’s medium and you need to get a frame size between 16” / 17″. For a road bike that’s still medium. You need a frame size of 54-55 cm. Don’t forget to get a bike fit.

  • Nora says:

    I am 5’ 3” tall female 66 years old. What size Ebike for me? 26 or 24 inch?

  • Donna says:

    Hi I’m 5,2 lady what would be the right frame size for me oh and I’m 13st I’m working on that bit ….😆

    • Editor says:

      Hi Donna,
      Your size falls under the small category. For MTB that’s 15” / 16″ For hybrid a 15” is perfect. For road bike it crosses to xs with 49-50 cm. You still need a proper bike fit though.

  • Richard says:

    Hello I’m 6’1 and have no idea what I’m looking at, I’m looking for a bike to exercise with also commute in future.. what size should I be looking for and what type of bicycle should I be looking at?

    • Editor says:

      Hi Richard,
      Let me help you with that. Are you into city and road riding. Perhaps you need a city bike or road bike. 6’1 falls under 58-59-60 cm frame and these numbers belong to the XL category. This is equal to an 18″ frame for city bike/hybrid. If you are not into speed, and simply want a decent commute then a city bike/hybrid suits you better with its relaxed geometry.

  • GLY says:

    Hi Jeff! I would like to ask about 28 inch bike and for what size of person it’s appropriate to use. Thanks!

    • Editor says:

      Hi GlY,
      Are you sure that is the right frame size you are looking for? Please consult the charts carefully to get the right frame size for you.

  • Lorraine says:

    I’m 5 ft female
    What size bike would suit me

    • Editor says:

      Hi Lorraine,
      For MTB that’s xs. It’s the same for road bike. You still need a proper bike fit to ensure you are comfortable in the bike.

  • Mickie says:

    Hello, I am 4’11” the chart is saying I need to purchase a 14″ frame, which seems so kid-size small. I’m only riding for exercise purposes, nothing extensive or professional. If I purchased a 24″ frame would I be at a huge riding disadvantage?

    • Editor says:

      Hi Mickie,
      Indeed. Although let me assure you that this is not the end of the process. You still need a proper bike fit because having the recommended frame size does not equate to comfort.

  • Nishchey says:

    I’m looking for a best suited bike. I’m not an enthusiast. Just starting to ride primarily for fitness. I wanted to know the type of bike that’ll be the best for me along with the sizes.
    I’m 25 yo with height of 5’9.
    Any help would be highly appreciated.

    • Editor says:

      Hi Nishchey,
      If you want a bike that offers a relaxing and comfortable ride, then a city/commuter bike is the right one for you. These bikes offer you the best of both worlds: commute and exercise without feeling like you are competing for a Tour de France.

  • Sarah says:


    I am 5’11 but my inseam is 34/35″ so I am not sure which measurement is more important as they fall on wildly different frame sizes? I think possibly the inseam is more important, but I’m not too sure.

    • Editor says:

      Hi Sarah,

      Both are important. However, we generally start with the height and the right frame size. The rest will follow: saddle fore & aft, saddle height, standover height, stem length etc. Having the right frame size makes it easy to make small adjustments afterwards.

  • Vichet says:

    Hi, I’m 5’11. I wonder if I can go for medium size mountain bike frame?

    • Editor says:

      Hi Vichet,
      The height falls under the 17″ / 18″ Large category. That’s the recommended size however, consider getting a bike fit to ensure comfort.

  • Minnie says:

    I’m a single mom trying to figure this out. My son is 13 and his height is 5’6”. He says his 26” bike is too small. Will the 29” be too big? Thanks!

    • Editor says:

      Hi Minnie,
      Your son falls under the 16” / 17″ medium category frame sizes. 29″ are the trend these days anyway. 27.5″ or 29″ is ok for him. If he is riding on both trail and road then consider getting a tire width or 1.8 or 1.9 is ok.

  • Jacob Holt says:

    Hi, Jeff! I am 14 and my height is 5’8 and my inseam is 2’8 inches. Which mountain bike frame size would you suggest?

    Best regards,

    • Editor says:

      Hi Jacob,
      You still fall under the 16” / 17″ frame sizes under medium. Bike fit should include all adjustments in stem length, saddle fore & aft and even crank length.

  • Justin Deramas says:

    Hi Jeff, Good day! I unconsciously bought a bike which’s frame size is larger than recommended (My height is 5’3 the frame size that I bought is 19) (I don’t have problems reaching the ground when I stop) my question is can I still use the frame size without problem?

    • Editor says:

      Hi Justin,
      Wow, your recommended frame size is 15″/16″ which is small. You bought an XL. I have my own question. Is it giving you aches and pains during long rides? Is it possible for you to have a bike fit appointment to see if adjustment to saddlebar angle, stem length and saddle fore&aft can make you more comfortable? That frame size is way too big for you.

  • Hwan says:

    HI Jeff,
    Thanks for good information here.
    I’m 5′ 10″. If I choose 29″ wheel, what bike frame size do you recommend?

  • Ujjwal says:

    I am 6’1″ and weigh 100+ kg. I have cycled 29er MTB. Now Intend to buy a hybrid.

    1. Which size 19″ or 21″ should I go with?


    • Editor says:

      Hi Ujjwal,
      The ideal size for you is a 18″ which is an XL. A 19″ would be closest. Do make necessary bike fitting in terms of stem length, saddle fore & aft etc because they would help in your comfort.

  • Aaron Mier says:

    Hi, Jeff! I really appreciated your article, it’s very informative. I have a doubt: my height is 1,67 cm (5’6”) and my inseam is 73,5 cm. Which road bike frame size would you suggest? A 50 cm or maybe a 52?

    Best regards,

    • Editor says:

      Hi Aaron,
      You fall under the medium category so a 50 would be perfect. However that is not the end of a good bike fit. You do need to take into consideration other factors like stem length and seatpost fore and aft.

  • Dom says:

    Hi, I’m 5″10 ½ and looking at Hybrid bikes. What size should I go for?

    I can do a medium with the seat slightly raised according to the person in store but the handlebars don’t adjust. Is this a problem?


    • Editor says:

      Hi Dom,
      Yes the person in the store did make a valid suggestion for those frame sizes that are smaller than your recommended size. You fall under the large category and a 17″ frame is a good one for you.

  • Tom Moran says:

    Hi Jeff
    I’m 5’5″ tall and weigh 173lb. What size frame should i get for a mountain bike or hybrid? Have a great night/day/afternoon (where ever you are.

  • Mensur says:

    I’m looking into getting hybrid/road bike with straight bar. I found a nice Cannondale Quick that is size 58 L/XL. I’m 5’10 and 185LB. Is this bike too big for me or would I be able to fit on there comfortably? If not, what size hybrid or road bike should i go for? Thanks

    • Editor says:

      Hi Mensur,
      That size is ok for you since it falls under the large category. Do get a bike fit if you can to ensure that you have the proper stem height, correct handle bar angle and saddle angle/fore and aft. These things are crucial other than getting the right frame size. You might have the right frame size but if the fit is incorrect then you will never enjoy the ride due to discomfort/pain issues.

    • Mensur says:

      I found a nice Felt Z85 road bike for $210. Do you think it’s a good brand and would you recommend? Thanks

    • Editor says:

      hi Mensur,
      Don’t underestimate this brand. It is a good brand and even earned a good review in Cycling Weekly. Yes I would recommend it 😉

  • Julie says:

    I’m looking at adult tricycle’s. I see 20″, 24″, and 26″.

    I’m 5’10” and 250 pounds. How do I know which size adult tricycle is right for me?

    • Editor says:

      Hi Julie,
      Get the 26″ because it fits your height. Is this an online purchase? Because it is best to try out the tricycle first before taking it home. This way the dealer can make necessary adjustments in terms of seat height and handlebar angle.

  • Mishera says:

    If I am 5 foot 3 inches, what is the best bike size for me?

    • Editor says:

      Hi Mishera,
      For MTB, it’s size small (15” / 16″)
      for hybrid, 15”
      for road bike, 51-52-53 cm, also size small.

  • Maria says:

    I weigh at least 250 and I’m 5’5” how do I choose the right bike with the right tire size?

    • Editor says:

      Hi Maria,
      Is this your first time riding?
      Consider the following:
      1. If you do not like gravel and want to ride on a smooth pavement then get a road bike(tire size is 700c with either 25mm to 32mm width).
      2. If you want something for the trails then get a mountain bike(26″ 27.5 or 29″ are options but I think you should have the 1st and the 2nd option).
      3. If you are an urban and casual rider then you need a hybrid/beach cruiser/city bike type.

  • wes says:

    What’s a good beach cruiser for someone 6’4″,something very comfortable and possibly step through. It would be nice to have shocks. I haven’t seen a lot beach cursers with shocks

  • Fidel says:


    I want to buy a gravel bike. my height is 169 cm and inseam is 77 cm. What size that fit for me?


    • Editor says:

      Hi Fidel,
      Gravel bikes still use the same charts as the road bikes. You need a frame that’s around 54-55 cm, under the Medium category. You also need to have a proper bike fit to ensure you have the right stem length and seat height.

  • Dominic says:

    I am 50 yrs old and 5’3″ (159cm) looking for a hybrid one. Most of the bikes are 17″ frame size.

    • Editor says:

      Hi Dominic,
      Yes, 17″ too big for you. A 15” under the small category is the right one. Personally? I would prefer a smaller frame over a large if you want better control of the bike.

  • Coseleng says:

    Hi.. I am about to get my first road bike. Looking forward to get the sl7 comp 2022 or sl7 tarmac expert 2021. I am 5’5 with 30 inseam. My LbS only have a size 49 cm and a 54 cm on the bike I want. I wonder if the 49cm will work on me? I’m not a racer and I only ride flat trail and some hills like bridge.

    • Editor says:

      Hi Coseleng,
      Although adjusting stem length and saddle fore & aft can help compensate for the frame length, I would still suggest a proper bike fit wit your LBS. This will ensure that you are comfortable with the necessary adjustments.

  • Raymond P Vaughn says:

    According to your chart my son looks to fit the 14″. He is 3ft 4 and 1/8 inch tall and 17 inch inseem. He will be 5 next month. Wanting to get a bike with training wheels. I’m anticipating a big growth spurt over the next year. He hasn’t grown much in the past year. Do you think he’d handle a 16″ training wheel bike? Thanks.

    • Editor says:

      Hi Raymond,
      16″ is a standard size for kid’s bike. However, keep in mind that the age is not really a true indicator as to the fitting. There are 5-year-old kids who may fit on a 16-inch bike while a 4-year-old may fit on a 20-inch bike!

  • Franke says:

    Hello. I am 5 foot 5 1/2 inches. I just got a Cannondale Habit 2 in a medium frame. when I stand over, my crotch is touching the post. I wonder if I should’ve gotten the small frame?

    • Editor says:

      Hi Franke,
      How does the ride feel? The ride is more important than the standover height. The thing about your height/frame recommendation is that it borders between medium and small. Sometimes the front shock can also alter the bike’s geometry especially those with more than 120mm of travel. Try to test the ride first before deciding to get a different frame size.

  • jaber chowdhury says:

    hi i am 5.5 inch tall but my favourite cycle has ony 18 inch . should i take that?? plz reply..

    • Editor says:

      Hi Jaber,
      You are probably talking about an MTB frame size right? If you look at the MTB chart closely you’ll notice that 18″ is bigger than your recommended size. You can still make changes in terms of stem length and handle bar angle. You can also adjust the saddle fore and aft. It would be better to get a bike fit though.

  • loki says:

    What size would a 12.5 inch Giant mountain bike be for? will it work for 5 ft 1 inch woman

  • Santosh says:

    I am 5’11”. I am having Ankelosying spondilytis. which size (tyre size and frame size) would be good for me.

    • Editor says:

      Hi Santosh,
      Sorry to hear that. A frame size of 17″ under the large category is good for you. As for the tire size, a 27.5 is perfect. You can also decide if you want an MTB or a hybrid/city bike style.

  • Makmudul Hassan says:

    Hi Jeff. Thank you for this guide. Do this work for both 27.5″ and 29″ mountain bikes? Does the wheel size impact the frame size required?

    • Editor says:

      Hi Makmudul,
      Not necessarily, however it can impact your reach or standover. These things can be mitigated by shortening the stem length ot lowering the seat post.

  • Patricia says:

    Hello I am a woman who stands 4ft 6i inches tall and I’m 150 lbs in weight but I am looking for a three wheel adult tricycle hybrid that’s if I have the right name for the bike but I’m looking for assistant biking since I haven’t rode in about 10 years and I’m wanting to get into shape so could you please help me out with information and advice thank you

  • Chris says:

    My husband is 6′ tall and weighs 245 lbs. Can you tell me what size bike he should get for the bike path and a bit of off road biking? This is his Father’s Day gift.

    • Editor says:

      Hi Chris,
      Gravel bikes(58-59-60 cm size XL) are the rage today. He it’s mostly gravel path with casual road riding then this is for him. If he wants to get an MTB then choose a hardtail(18″ / 19″ size XL).

    • Makmudul Hassan says:

      Good information.

  • Brett says:

    Hi Jeff. Thank you for this guide. Does this work for both 27.5″ and 29″ mountain bikes? Does the wheel size impact the frame size required?

    • Editor says:

      Hi Brett,
      Personally I think not really. However tire size can impact handling. Bigger tires are not as nimble as smaller ones. You can make adjustments with the seatpost height.

  • John says:


    I’m thinking of buying a used Kona Jake gravel grinder. I’m 5 11 and the used bike is 54-55 (medium frame I think). I’ll use it for longer rides on rural roads and some gravel roads. It’s 2007 for $400 Canadian. Is this a good fit for a casual rider? Thanks.

    • Editor says:

      Hi John,
      The answer is yes. It usually gets a 4 out of 5 stars on the average based on many online reviews. So you can say it is a decent bike to have for your gravel rides.

  • Rocio says:

    We are looking for a mountain bike for my husband, he is 6’10”. I have a 26” bike but he says that’s way too small for him. While shopping, I get very confused because the bike will say “29inches wheel size”. Is this what we are looking for? I understand that the frame and wheel size are two different things. In most cases, I can’t find where it says “frame size”.

    • Editor says:

      Hi Rocio,
      A 19″ + XXL frame size and a 29” wheel size is recommended for him. Frame sizes have values like 17”, 18” or 19”.

  • Suzanne says:

    How do.you measure for tricycles for seniors?

    • Editor says:

      Hi Suzzane,
      Although we don’t have a size chart for tricycles, I found this link for you. I hope this helps 🙂

  • Nate says:

    This is VERY BAD ADVICE. You should 100% try your bike before you buy it. There are so many things to consider and buying the wrong one can be expensive to make fit you properly in the long run and cause you injuries.

    • Editor says:

      Hi Nate,
      My apologies for not expounding enough. The problem these days is that most of the time, bikes are available onlije. So there is no option to try it. However you do have an option to send it back if you have exhausted all possible means of resolving the issue: shortenint or lengthening stem lengh, the saddle fore and aft, saddle layback etc. We understand that the human body is unique and there is no “perfect”

  • Vera says:

    Hi, my daughter started doing Mountain Bike, and she has a 24”. She is 9 1/2 yro and 1,30 mt heigth. I am a bit lost, cause for normal bike would be all right… but I think this Mountain bike is big…Which would be the Mountain Bike for her? Tnx

    • Editor says:

      Hi Vera,
      What’s your daughter’s current height? And what’s the frame size of the mtb?

    • projie says:

      Im 5’9 tall idk whats really the size of MTB frame for me..riding style is XC

    • Editor says:

      Hi Projie,
      You already fall under the 17″ / 18″ large category. In case you are planning to buy one, you can see it under the charts.

  • Christan says:

    I am 6 foot 4 and have a 36 inch inseam and have a really hard time finding a big enough bike. I am looking for a hybrid, I do no want a too low handle, but it is still for exercise on the road, Any recommendations?

  • Andrej says:


    I have gravel bike XL or 60 cm. I’m 187cm tall and my inseam is 89cm (barefoot), did I bought too big bike, because I turned the bike stem upwords for better position some taller then me ride L size, but at first was little to small for me so I chose for XL.

  • Dea says:

    Is a city cruiser with dimensions of 53″L x 8″W x 28″H the right size for a woman whose 5’8″ tall?

    • Editor says:

      Hi Dea,
      Your frame size overlaps between medium and large. So yes that will do. However, the ideal is a
      16” medium.

  • Jeff says:

    I’m looking for a mountain bike for our 13 year old son who is around 5’4 right now and still growing. I’d like to get a ‘long-term’ bike for him if possible. He can just barely clear the top bar of my large size frame Norco mtb. There are some very good used ‘large’ frame bikes available right now, do you think it would be overly difficult for him to ride comfortably on a big bike while he continues to grow?

    • Editor says:

      Hi Jeff,
      I have seen kids riding adult bikes and doing it off the saddle. However, for safety purposes, you can get him a size undrr 15” / 16″ Small. This is good for a fee years.

  • Kim says:

    Hi. Guess I will ask too, I’m 5’6″ with inseam 32″, what size would I need, would a 17″ work???? Thanks! The lady at the bike shop had a 14″, I think it was decent when I stood on the ground, she said it was wrong for me, they only had a 17″ in another bike, which I liked, but felt just a tad off in height of bike. Also, it was a Del Sol Flow 1 and 2. Are those good bikes? I want to be able to ride in a paved park, plus a few minor paved hills. Thanks so much!!

    • Editor says:

      Hi Kim,
      If you mean MTB frame then 16” / 17″ are both ok for you. You can make adjustments with the stem length…

  • Shain says:

    I already purchased Giant Contend AR1 2021 Size Large. Not sure if it is right for me..

  • Shain says:

    Hi there! Could you please help me out here? My height is 182 cm. Inseam – 86 cm. Which size would f”fit me best?
    Thanks in advance!

    • Editor says:

      Hi Shain,
      As long as you don’t got above or below these frame sizes then you are ok:56-57-58 cm, and yes these are under the large category.

    • Frank Rizzo says:

      That’s a huge inseam!

    • Lachlan says:

      I’m 183 and also have a giant contend in a large. It feels great

  • Kenry Landers says:

    Hello, I am 5’8″ with an inseam length of 32″. Do you think a 53cm frame would be a good size for a hybrid bike?

  • Victor says:

    Hello, this is a great place for information. Currently I’m on foldie (second hand) and looking to get a new roadie (but with straight bar). But I’m confused with sizes. From various manufacturers.

    I’m 5’ 8”, with an inseam of 30.5” & I weigh 86kg.

    Looking at Trek, Giant and perhaps an online Yoeleo(hope they sell ready build bikes).

    Hope you can give me a hand to my query. Thank you. Victor.

    • Editor says:

      Hi Victor,
      I understand what you mean. You need to stick with frame sizes between 54-55 cm, the latter being your sweet spot.

  • Florian says:

    I am looking to buy a mountain bike bicycle. I am 6’2″ and 275 pounds and 32″ inseam. What size of frame/wheels do i need. Thanks

  • Jamaica says:

    Hi, i’m 4’8 what size should i get? Please help.

  • Atty says:


    My height is around 177/8 CM and inseam 32″ but have Releigh Gravity 15, do you think I can use it with some adjustment …?

    • Editor says:

      Hi Atty,
      Your height falls under the medium category 16” / 17″ but you have a small frame size. You can make adjustments with the stem length and saddle fore and aft. You can try a layback saddle too.

  • Chris says:

    Hello! I’m looking for a Mountain Bike but i’m not sure what tire size is right for me. I’m 5’10 and have an 81 cm inseam. I know I have to look for a bike with a 17-18″ frame, but I was wondering whether I should choose a 27.5 or 29 inch wheel. Thanks!

    • Editor says:

      Hi Chris,
      It’s up to you. Some prefer the 29” because they are great for offroad and navigating through rock gardens. However, the 27.5” tires are more responsive. 2.0 is the standard tire size for mtb.

  • Nancy says:

    Hi I’m looking forward a beach cruiser and I’m 5’3” an about 200 lbs I’m thinking 24” tires please advise. Thank you

  • Austin says:

    I am 6’3 and What size Mountain Bike do I need? (I find this article confusing)

    • Editor says:

      Hi Austin,
      I am glad to help. Your ideal frame is something that’s 19″ under XL.

  • Arnel Berroya says:

    Hello.im 5.10 and my weight is 125 kilo which size of rod bike?tnx

    • Editor says:

      Hi Arnel,
      You need 56-57-58 cm frame sizes under the Large category. 57 is your sweet spot.

  • Wm says:

    Hello, I’m looking at an old fashion 1950s Raleigh road bicycle, Frame size is 22 inches. I’m 6’1″ 220 would this bike be to small for me ? Appreciate the response back.

  • salim says:

    what will be the right wheel size for me . I am 6 feet hight & 110KG heavy weight man

    • Editor says:

      Hi Salim,
      It depends on what kind of bike you have in mind: Road bike or Mountain bike? For MTB 27.5 and 29 are ok.

  • Joy says:

    Hi. Maybe you can help I’m 5’0”. Inseam is 26 inches. What size bike. I know XS but in inches

  • Costa says:

    Hey! Im looking to buy a road bike. I am 5’6 and weigh about 188lbs. which size should i go for?

  • Jen says:

    Hello! I am 162 cm for my height with a 81cm inseam. I am so lost on what size mountain bike to purchase. Can you point me in the right direction?

  • Andre says:

    Hi there. On what wheel size are these charts based on? E.g. if I have a 27.5 or 26 inch wheel on a Small MTB frame, will it be ok for my daughter (1.5 m tall)? Or should I rather go for a XS frame? Thanks

    • Editor says:

      Hi Andre,

      This is pretty much standard across all bike websites. Your daughter’s recommended size: 13″ – 14″ with 26″ wheels. This is under XS.

  • Cecilia Harris says:

    Hi. I am looking to buy an adult tricycle. I don’t know if I need a 20 inch or a 24 inch tricycle. I am 5 ft 2 1/2 in tall and weigh 215 lbs.

    • Editor says:

      Hi Cecilia,
      Interesting question as it is rare for me to get this. To answer your question. we do have Best Adult Tricycles review which you might care to read! You need a small frame for comfort, preferably a 15″ frame. 🙂

  • Lennox Sd says:

    im 5,10 and still growing I want a SANTA Cruz Bluz however I’ve raced the medium frame and it feels slightly short on the extended climbs but great for flowy extensive decents I’m not sure which frame size to go with but with xc racing I’m leaning toward large and comments?

    • Editor says:

      Hi Lennox,
      You already belong to the Large frame category. I suggest you look into that. There are also small changes that can be done during a proper bike fit.

  • Luka says:

    hello , i am 170cm high , and my inseam is 78cm . I have good price for Giant Contend AR1 road bike in M size.. is it to Big for me ?

  • SJones says:

    Does weight of rider effect the required size of bike? Iam 5’4 and 270 lbs

    • Editor says:

      Hi S,
      No. However, there are necessary adjustments needed to offer comfort. Like for instance, getting too aero on a road bike might be hard for those who are either new or trying to lose wight. In your case a 51-52-53 cm or 15” and 16” are the right sizes for you. They are under the small category.

  • Cheryl kaplan says:

    I am 4’6” and weigh 130 lbs. can you suggest a bike for me? I’m not great with balance, but I like to ride.

  • Jt says:

    Is there a bike that allows a double Thule stroller attached via trailer attachment, and then a child seat? (3 kids in total). We live in the Yukon Territory in Canada. So something for that weather and is good with all terrains. Fat bike would probably be better? I am 5’2 and 110-120 lbs!

  • Dawn says:

    Hello and thank you so much for this great resource as well as your time. I’m truly impressed at how many questions you personally answer. I am returning to biking after several decades and looking at classic, vintage-style Mixtes and Roadsters. The Bianchi Venezia Gent in their beautiful, original, milky Celeste has really caught my eye. I am female but prefer the seating position on the men’s frame as opposed to the Venezia Dama. I stand just at 5’5”. Plus we all shrink with age, and I want to enjoy this investment for many years to come. The Venezia Gent is offered in 49, 53, and 57. Should I opt for the 49 and just raise the seat, if needed? Or should I go for the 53? Thank you!

    • Editor says:

      Hi Dawn,
      49 is too small. Your frame size is under “small” so 51-52-53 cm are good for you. Yes you can take the 53 🙂 Oh and yes that’s a great brand!

  • Terrence says:

    Hi, I’m 178 cm with inseam of 83 cm. Please advise what should be the right size for mountain bike? Thank you.

    Rider height: 165.5 – 179.0 cm
    Inseam : 77.0 – 84.0 cm

    Rider height: 177.0 – 188.0 cm
    Inseam: 83.0 – 88.0 cm

    • Editor says:

      Hi Terrence,
      You overlap between M and L. Your sweet spot is 17”. I’d say between 17 and 18 🙂

  • Jonathan R. Miguel says:

    Hi I am 169cm height with 76cm Inseam. I’m planning to buy a road bike endurance type Cannondale. What frame size will be suitable for em

  • Subin says:

    What would be the appropriate frame size required for a boy with 139cm height and his inseam is 64cm.

  • Jessica says:

    Great article and thanks for sharing!

    My height is 164cm and my inseam is 77cm. … I was looking at a Canyon Endurance road bike and it’s Women’s model – I would be 2XS but the 3XS and 2XS bikes have smaller 650b wheels.

    I have shorter torso and longer legs, weight 55kg.
    Do you recommend that I follow based on their calculation or should I get XS instead?

    Thanks and appreciate it! 🙂

    • Editor says:

      Hi Jessica,
      You actually fall under small category. Your frame chart says: 152-160 cm 49-50 cm XS
      5`3″-5`6″ 160-168 cm 51-52-53 cm S. Don’t forget to get a bike fit 🙂

  • Tracy L Reierson says:

    I am 5’6″ with a 29″. I am male and am looking to get a road bike and start getting back into riding more regularly. I see quite a few used 56 cm frames for sale and it looks like that would be on the top end of what I should be looking at. Would this be ok or should I look at a smaller frame? Thanks.

    • Editor says:

      Hi Tracy,
      As long as it is within this range:5`6″-5`9″ 168-175 cm 54-55 cm M

  • Sarmor says:

    Hello Sir,
    Finally, got my bicycle today. It’s Raleigh Strada (18.5 frame, 29er). I got a best bike just because of your supporting suggestion. Enjoy biking now…..thanks a lot

    • Editor says:

      Hi Sarmor,
      Congratulations! I am sure you will have many great rides with that bike. Enjoy and thank you for the support 🙂

  • CP says:

    I’m 5’7 with an inseam of just shy of 34 inches. What size of womens road bike would i need?

  • Tracy says:

    My husband is 6’5” and it’s been difficult to find a bike for him. At this point I’m planning to modify a 29” bike to better fit him vs finding the perfect one ready to go . I read on your page about moving/extending the seat and maybe the handles too. Do I buy a seat extender? What about for the handles? Thank you so much!! 🙂

    • Editor says:

      Hi Tracy,
      There are layback seat posts that you can check out via Google and YouTube. I suggest you check them out before buying one. You can also get a longer stem. However, before getting these, please research on the pros and cons. Not only that they affect bike geometry, they can also affect handling. That is why a proper bike fit is still the way to go.

  • zaid ahmad says:

    I’m looking into Trek bikes in size L because XL availability is difficult because of COVID, will L be fine

    • Editor says:

      Hi Zaid,
      Bike frame sizes can overlap between L and XL. That is why bike fit is important. What’s your height?

  • Martin says:

    Hi there,
    I was lucky to come accross your web page, as I am in a bit of a dilemma trying to calculate the IDEAL road bike frame. My inseam is 76cm and total height is 168cm my “total arm span” is aprox7/8cm more thatn my total height. I am interested in buying a Bianchi Via Nirone 7 with the sloping frame desing. the bike frame i found is a 52cm on the seat tube and 53cm on the horizontal. My thoughts after reading your page and charts, is that a 52cm seat tube would be ideal.. is this correct ? many thanks, Martin

    • Editor says:

      Hi Martin,
      53 and 54 are ideal. You can make micro adjustments via stem length and saddle fore and aft.

  • Will says:

    Hello – I am looking at 2 different used Trex Navigator 200 comfort hybrid bikes and deciding on which one would be better size for me. I will mostly be riding on road, soft paths on dirt, grass and the lightest off road conditions. I am 5’9 and I weigh 200lbs. One is an 18.5″ frame and the other is 21″ frame. I think that according to the charts I should be fine with the 18.5″ but I am afraid I may not be comfortable on long trips. Your thoughts and suggestions?

  • Sarmor says:

    Dear sir,
    I am stuck in a dilemma to buy a MTB bicycle for my height (6 feet 2 inch) with inseam length of 37 inch. Since I visit my nearby decathlon store and they have XL ( ideal for 180-195cm rider height) size ROKRIDER ST 100 with 27.5 WHEELS. According to there cycling height chart, seems like it is the best buy for me but they suggest me to go for L SIZE 29er as per my height. The purpose of the ride is to go off as well on-road. Please enlighten me as I am still in confusion??

    • Editor says:

      Hi Sarmor,
      If you look at the bike chart you can see that your height can overlap between XL and L. It says your frame sizes are:18″ / 19″ XL, however, your sweet spot is 18”
      which can also be classified under Large. SThey do have a point because wheel size can also affect bike geometry. I’d say go with their suggestion and also get a bike fit 😉

  • Kaleyo says:

    Hi – I am looking at cruisers and my measurements suggest a frame of 52 cm and I am about 5’5 and half inches. The city cruiser I am buying comes in a M (50 CM) or L (54 CM). What would you suggest I buy? The Merchant said the L frame but I am worried about the seat height flexibility I will lose in the larger frame. Not sure if its better to size down or up when you are in-between sizing.

  • Jordan Corso says:

    Im 6 foot 6 215 lbs looking to get a bike soon to put some muscle on my legs. Any suggestions?

    • Editor says:

      Hi Jordan,
      For your height, I suggest a 19″ + also categorized as XXL. You did not indicate if you are into MTB or Road Bike.

  • Teresa says:

    Hello! Can you please recommend a bike. I’m about 5’9” , 160 pounds and I’m looking for a new bike. I intend to do easy riding on regular bike trails and streets, trying to get in shape. Not sure what type of bike I should be looking for. Thank you!

    • Editor says:

      Hi Teresa,
      You might want to check our hybrid bike section because it seems to be the right one for you. Better get a 17″ under Large category.

  • G Panchal says:

    Hi , I’m 6″2′ , inseam 36″, i’ve never owned an XL bike, nor have I spent more than $220 on a bike, – I’m looking into Trek bikes in size L because XL availability is difficult because of COVID, will L be fine? I’ve probably always ridden smaller M-L bikes but just ignored the fact that it wasn’t optimal size, but this is a much bigger investment.

  • M Hunter says:

    77.5cm * 0.70 = 54.25cm
    Yet, in your chart you have 77cm listed as needing a 52cm road bike.
    Why the discrepancy?

    • Editor says:

      Hi M,
      It is just an approximation. We understand that everyone has different body geometries. Sometimes they overlap. As long as you are still within the range in relation to your height then it is still ok. Always get a bike fit too. The frame size is just one aspect.

  • Juan says:

    hi , im 5’4 , inseam 28.75 inches , just bought a Giant defy M , frame size 21 inch or 53 cm
    looking the size chart on google 53 seams to be the max for y size , what do you suggest? , to get a Small size or keeep it , in long term , im gonna have a back problem ?

    • Editor says:

      Hi Juan,
      You are ok with the 53cm. You can make little adjustments with the stem length. However that looks like a good size for you.

  • Rashmi says:

    I am 5’1. Looking for a cycle. Suggest me frame size.

    • Editor says:

      Hi Rashmi,
      I suggest a frame size of 4’11” – 5’3″ = 13 – 15 inches; under xs category. Please get a bike fit too! 🙂

  • Rik says:

    Hey Jeff — thanks so much for the article! I’m a male, 5’9″ falling right between the Trek M and L hybrid size; I can just stand over the bar of a L without much room; yet owner of the bike shop suggested a large, especially because I wanted a taller stem and slightly swept back handle bars so I could sit upright, which brings the handlebars closer to me. He said the M might not give me enough room to stand up on the pedals and still have it be stable —
    Now that I got the bike, it fits pretty well as I ride it; yet wonder if a M would be better/faster/more nimble, with a bit more room over the bar, standing? Or might I be too far forward with the raised handlebars coming back toward me?

    • Rik says:

      p.s. fyi, the Trek hybrid specific model I got is the FX Sport Carbon 4

    • Editor says:

      Hi Rik,
      The thing is that your height overlaps between medium and large. Still, getting that frame size is ok. Yes you can make little adjustments with the handlebar and stem. Personally, a frame that is smaller is always easy to control. It feels nimble.

  • Izzie Willows says:

    Hello i am 5 foot 2, and around 90-100 pounds i wanna get a mountain bike what size do i need?

    • Editor says:

      Hi Izzie,
      This is your chart:
      5`1″-5`5″ 158-168 cm 25-30” 63-76 cm 15” / 16″ Small. Get a bike fit too.

  • hiro says:

    hey if iim 5’4 what bike size should i get?

    • Editor says:

      Hi Hiro,
      You need a small frame for both Road bike and MTB.
      5’3″ – 5’7″ = 15 – 16 inches

  • Jagadish says:

    My height 6feet 1inch my weight 128 kg what size of bicycle can i go for? i did start with rock rider from decathlon but due to weight it does not fit for me. I am looking for MTB.
    Can you please suggest me good one for me. I am looking for long rides as well.

    • Editor says:

      Hi Jagadish,
      This is your chart: 6`1″-6`6″ 193-198 cm 29`-34` 73-86 cm 19″ + XXL
      Or find something very close. Cheers!

    • Safa says:

      Hi Jeff my daughter 12 years old .She needs bicycle, her height 155 cm,her weight 25kg ,please what size do think would be best ? Thank you

    • Editor says:

      Hi Safa,
      She needs a bike with a frame size of 14″ which falls under the XS category. I hope this helps 🙂

  • Ronit Patel says:

    Hey Jeff, I’m looking for a road bike and I’m 5’8. What size do you think would be best?

    • Jeff Balton says:

      Hi Ronit,

      This is your chart:
      5`6″-5`9″ 168-175 cm 54-55 cm Medium
      Don’t forget to get a bike fit if you can 🙂

  • Yazzer says:

    hello im 5’5 feet whats the best size for me?

    • Jeff Balton says:

      Hi Yazzer,
      For someone your height you’d need this: 5’3″ – 5’7″ = 15 – 16 inches. This also falls under medium.


    I’m 30 years Old and I’m 6.5 ft Height and Weight 96 which cycle Was Good for My Daily Useage.. kindly sort out the Perfect one for me

  • Sumi says:

    Hi, I’m a 5’tall lady with a small frame body size. I’m looking for a road bike. What would you recommend to me?

  • Philips John says:

    My height 5feet 10 inches my weight 100 kg what size my bicycle??

    • Jeff Balton says:

      Hi Philips,

      You did not indicate if you want a Mountain Bike or Road Bike but to be on the safe side, here are your scales:

      MTB: 17″ / 18″ L
      RB: 56-57-58 cm L

  • Ron Smith says:

    Hi Jeff,
    I’m 66 year old male, good physical condition. 5’11” tall, 31.75” inseam, 190 pounds. Looking at getting endurance / sportive road bike. Size?

  • Panos says:

    Hey Jeff,

    I am 40 years old male with height 177cm and have an inseam 81.5cm. I am looking to buy a new MTB, specifically Kona Lava Dome 29″.

    I send the measurements too Kona site and they reply me to take the Medium size, but the store suggest me to buy the Large.

    Which size frame should I get?

    Thanks for any help

    • Jeff Balton says:

      Hi Panos,
      Here’s your chart:
      5`5″-5`9″ 168-178 cm 26-31” 66-78 cm 16” / 17″ Medium.

      I suggest you get the medium one and make little adjustments from there. You should also get a bike fit if you can.

  • Thomas O’leary says:

    Hi I’m 5ft 10 and I like a big bike and the bike I want only has 19” and 21” which should I go for ??

    • Jeff Balton says:

      Hi Thomas,

      Those are already categorized under the XL and XXL sizes. You need a large frome: 17″ / 18″ The closest is the 19″ but I suggest you better get a bike fit. And, getting a bike bigger than your recommended size can pose problems in terms of handling and comfort.

  • krishna says:

    Hey Jeff,

    Thanks for the detailed article about the bike fit and sizing. I am probably reading it late now since I have already bought my bike. I am 178cm tall, inseam length is 90cm. I bought orbea orca M20 with 55cm frame size and 110mm stem. I have lengthy arm span at 193cm. I would have gone for a bike fit service but no bike shop around my locality is doing bike fits now due to the pandemic. Can you please suggest what adjustments I can make to this frame to suit my body ? Thanks again

    • Jeff Balton says:

      Hi Krishna,
      Just a centimeter short from the range. You can make an adjustment with a longer stem length and saddle fore and aft. You can move the saddle further back.

  • Suki says:

    Hi Jeff, I am 5ft tall with an inside leg seam of 68.2cm. Due to covid we are not allowed to test ride bikes and a retailer has assured me that the Gazelle CityGo C3 size D46 will be suitable but another salesperson from the same shop was not so sure. I would be most grateful for any advice.

    • Jeff Balton says:

      Hi Suki,
      Your sweet spot is a 14” frame. Below or beyond this would be uncomfortable.

  • Khai says:

    My wife 4ft 10(148cm)
    What size road bike should she get?

  • Scott Woods says:

    I am 6 ft 2 inches and have an inseam of 33 inches not sure which size bike to get in a hybrid bike. Any thing you can suggest would help. Also what do you look for online if they don’t show measurements just says for men

  • Andrea says:

    My 14 year old is looking at buying a used trek Gary fisher bike. He is 5’11. The bike has 29 inch tires and on the frame it reads 15.5. I have searched to get an answer to this but I think the frame may too small for him. He wants its to ride around town, neighborhood and metro park trails. But I don’t want him to buy the wrong thing. New bike owner here. Thanks for any help

    • Jeff Balton says:

      Hi Andrea,
      Yes the frame is smaller for him. He is going to continue to grow taller. Currently he should have 17″ / 18″ Large frame. Give him a bike thats of right size for him.

  • Matthew Somerton-Rayner says:

    Hi Jeff, thanks so much for this post and your helpful answers to the many questions- to which I’m adding another!😉

    I’m looking to get a Reise and Muller Homage ebike, but I’m unsure which frame size to get. I’m 179cm tall with an inseam of 74. There are two possible frame sizes, 49cm for body height 1.65- 1.80cm, or 54cm for 1.75- 1.90.
    Any advice would be welcome, it’s an expensive bike for me and I want to get it right! Thankyou for your time.

  • Honore Kaszuba says:

    Hi Jeff-thanks for the great article! My son just bought a Trek FX 2. The bike shop put him in an XL frame (was the only one they had) My son is 16 years old, 5’11” with a 32″ inseam but only weighs 130lbs. The bike looks huge to me! The shop thinks he’ll probably grow making the L too small. What are your thoughts? My son loves the bike and says it feels good but he’s also moving up from a 1980’s era Schwinn Mt bike so any new bike would probably feel great! I just want to make sure he’s on the right bike.

    • Jeff Balton says:

      Hi Honore,
      Given his age, he will grow rapidly so I understand the concerns of the bike shop. His ideal frame size is 17″ which is already under the large category. If he says he feels ok with it then I think you can stop worrying.
      Here’s his chart:
      5`9`-6`0` 175-183 cm 27`-32` 68-81 cm 17″ L

  • Martin says:

    Hey Jeff,

    First of all, great article!

    Secondly, I am 171 cm tall and based on the measurements on the 2nd option, I calculated my frame size as being 17” respectively. I bought a medium Giant Trance 29er MTB that has a 17” frame size but I noticed that my personal men’s “accessories” don’t have any clearance at all when I stand over the top tube. Should I downsize my bike or does the stand over not matter as much?


    • Jeff Balton says:

      Hi Martin,
      There are factors that can change the bike geometry(more common in mountain bikes) and one of them is the travel of the front suspension. For example, if the travel exceeds 100mm then it can alter the bike geometry affecting issues like top tube clearance. So far there are people with the same issue as yours and it doesn’t really affect their riding performance. Check if it gets in the way of your comfort.

  • George says:

    Hi Jeff,

    I am 6.7 and 225 pound and looking for preferable a city bike. I looked around, but it’s hard to find XL or XXL size bike which doesn’t cost $1000+. Do you might have an idea where to find these?


    I am 6.3 ft tall and have 58 cm Cannondale synapse road bike.Earloer had MTB and didn’t face such issues.

    Inseam 37 inches.

    While riding sometimes I get right elbow pain and after resting it goes off but I am not getting it in left elbow.

    Is the size correct for me or am I missing something.

    • Jeff Balton says:

      Hi Vignesh,
      Here’s your chart size: 6`0″-6`3″ 183-191 cm 58-59-60 cm XL
      6`3″-6`6″ 191-198 cm 61-62-63 cm XXL

      As you can see they can overlap but your bike is a little smaller than recommended. Your sweet spot is 61 cm. Check your saddle angle. If the angle is off, then it is pushing the weight of your body to one hand. It could also be handle bar adjustment. If it gets too much then you need to have a proper bike fit.

  • Jack says:

    I am 164cm tall. and I weigh 72kg. I wish to buy a 29″ Mountain bike.

    • Jeff Balton says:

      Hi Jack,
      Get a 15” / 16″ which is under the small category. Get a bike fit too because when you get a 29″ it might do something to the geometry.

  • Elena S says:

    Hi Jeff,
    I am a cycling beginner and desperately need help. I am looking to buy a women’s bike, Specialized Rockhopper 27.5, 2021. I am 164 cm tall, leg inseam 76 cm. I fall between S for body height 158 -165 cm and M for body height 162 – 178 cm. Which size would you recommend?
    Thank you so much

    • Jeff Balton says:

      Hi Elena,
      That’s a great choice of MTB! I suggest you get the 15” / 16″ which is under the small size.

  • Julia says:

    Dear Jeff
    Thanks for the information. It was very kind of you. I wish you have a good day.

  • Selvan says:

    Hai sir. My tall saiz 159cm…wat saiz road bike I cn buy

    • Jeff Balton says:

      Hi Selvan,
      A frame size around 15” / 16″ is fine for you. Those are under the small category.

  • Julia says:

    Dear Jeff
    What do you mean?? To choose the bike with frame size 43cm(extra small) or to choose the bike with frame size 46cm (small)?

    • Jeff Balton says:

      Hi Julia,

      Sorry for the confusion. I mean that you need to choose the small one and that is the 46cm.

  • Yula says:

    Dear Jeff
    I am 164 cm tall without shoes and 165 cm with shoes. My leg inseam is 76 cm. I would like to buy a women’s bike Trek KTM 28 Life Track. I fall between XS43 cm for body height 155 -164 cm and S46 cm for body height 165 – 169cm. Which size frame ( in cm ) should I get?
    Thank you

  • Sugar says:

    My height is 5’9.what kind of bike to compatable or size for me.roadbike

    • Jeff Balton says:

      Hi Sugar,
      You already fall under the large category, so I suggest you get somewhere between 56-57-58 cm frame size.

  • Helen says:

    Hi Jeff,

    Could you please assist, i am 173.5cm tall and leg seam of 84cm – they give me different sized bikes, what is the best option for me?

    Thank you!

  • Julia says:

    Hi Jeff,
    It would be great if you could help me. I am 65 years old female and 164cm tall. My leg inseam ia 76cm. I would like to buy one of the following bikes
    1) Trekking KTM 28 Life Track with size frame 43cm ( XS )
    2) Trekking KTM 28 Life One with size frame 46cm ( S )
    I fall between XS and S but want to make the right choice. Which size frame ( in cm ) should I get?

    • Jeff Balton says:

      Hi Julia,
      Here’s your chart category:
      5`1`-5`5` 155-165 cm 25-30” 63-76 cm 15” Small
      Don’t get something smaller than this.

  • Guido says:

    Hello Jeff,

    I am 1.96 m tall with an inseam of 99 cm.
    What bike size should I get?

    • Jeff Balton says:

      Hi Guido,

      For the size, check out the different charts below:

      Road bike: 6`3″-6`6″ 191-198 cm 61-62-63 cm XXL
      MTB: 6`1″-6`6″ 193-198 cm 29`-34` 73-86 cm 19″ + XXL
      Hybrid: 6`1`-6`6` 191-198 cm 29`-34` 73-86 cm 19″ XXL
      As for the kind of bike, it really depends on your riding style. Where do you want to ride?

    • Guido says:

      Hi Jeff,
      thanks for the information.
      The plan is to get a road bike to ride during the summer months, doing some of the mountain climbs in the area where I live (British Columbia).
      Finding a bike frame my size will be tricky, but I will look around.

    • Jeff Balton says:

      Hi Guido,
      You are welcome. Comfort should be a priority, not fashion 😉

  • Sijuraj says:

    Hi Jeff,
    My length is 167cm, 45 years old and 65 kg weight. I purchased a mountain bike Scott aspect 770 small size and using it for a month. I feel a slight pain from my right lower back. Was my size selection wrong?

    • Jeff Balton says:

      Hi Sijuraj,
      Looking at your size chart: 5`1″-5`5″ 158-168 cm 25-30” 63-76 cm 15” / 16″ S
      It looks like you are still within the right range. Try moving the saddle forward. Did you check the fork travel? You should have 100mm of travel. Beyond that will change the whole bike geometry which has an impact on comfort and position. Do let me know asap.

  • Mary Walsh says:

    Hi Jeff I am 72 and I am 5′ 1 am wanting to get a bike I guess a road bike .what size should I get and how do I look on line for the right size thank you

    • Jeff Balton says:

      Hi Mary,

      Welcome to the world of cycling. Here is your size chart: 5`0″-5`3″ 152-160 cm 49-50 cm XS

  • Lauren says:

    i’m 4’11-5’0 with a 27-28 inch inseam, which size frame (in inches) should i get? Also i’m about 110 pounds.

    Thank you.

    • Jeff Balton says:

      Hi Lauren,
      Road bike: 5`0″-5`3″ 152-160 cm 49-50 cm XS
      MTB: 4`10”-5`1” 148-158 cm 24-29” 61-73 cm < 14″ XS
      Hybrid: 4`10”-5`1” 147-155 cm 24-29” 61-73 cm 14” XS

  • Daria says:

    Yo, considering buying Polygon Xtrada 5 sized M. Really want to get into the bigger wheels but my height is only 5’7” with 30” inseam. Worrying that it will be too up high for me. Too short for a 29er? Or it’s just a myth?

    Btw, it seems to me polygon frames are on the smaller side. For example, silverback slade comp. It got somewhat similar trail geometry and numbers are close to M sized polygon.
    What you can say?

    • Jeff Balton says:

      Hi Daria,
      Here’s your size chart: 5`5″-5`9″ 168-178 cm 26-31” 66-78 cm 16” / 17″ M
      It really depends on the kind of riding you do. If you are doing light trail which is less rocky then you don’t need a bigger wheel. A bigger wheel size is also less nimble. But if you really like it then it is ok. Just don’t stray away from your recommended frame size. Other factors like saddle height and stem length can also play a big part in handling.

  • Lee says:

    Hi I purchased a specialised allez road bike last year I got conflicting bike sizes from 2 different bike shops between a 56 and 54 frame.

    I am 5ft 8.8 so went for the 54 frame in the end.. I am feeling a lot of pressure in my hands mainly left.. I’m now wondering if I should have gone for the 56frame but at the time 54 felt better… any ideas

    • Jeff Balton says:

      Hi Lee,
      You actually have the right frame size. Check your saddle tilt(this has nothing to do with the saddle height). Do some experiment by tilting the nose tip up. Do little changes until the pressure is removed from your hands.

  • Kimberli says:

    Hey Jeff.

    I am 5’10” but I have a 36″ inseam….. I keep seeing 17-18″ for taller women but my inseam is longer than the average 5’10” person… so what do you suggest

    • Jeff Balton says:

      Hi Kimberli,

      Yes those are the right sizes for you. You can make changes like adjusting the saddle fore and aft or saddle height. Do let me know once you have experimented with these changes.

  • Della says:

    Hi Jeff , thank for your time reading this post .

    I am a 40 year old female and 158 cm tall.

    What size frame in inches should I buy? I’m currently eyeing a hybrid or road bike. I am a bit confused with the size for me .

    I am new in this bike 🚲 world 🌍 I think never is too late .

    • Jeff Balton says:

      Hi Della,

      This is your size chart:
      5`0″-5`3″ 152-160 cm 49-50 cm XS. I would recommend you also get a bike fit.

  • Teresa says:

    I am 5’0” inseam is 29” what size of ebike do I need

    • Jeff Balton says:

      Hi Teresa,

      Welcome to Bicycle Guider! You did not indicate what type of ebike you like. However, I will list down these charts for you:
      MTB: 14″ XS
      Road ebike: 49-50 cm XS
      City bike/Hybrid: 14” XS

  • Mr. Collins says:

    I’m 6feet 2 inches tall. My inseam is 33. I’m 65 with pretty bad knees.
    I would like to buy one of those electric mountain bikes with very FAT tires. I will be riding mostly on uneven roads, gravel and sand filled roads, actual low incline mountains. I will ride for leisure only.
    What would you recommend? Bike size, frame size? All the works. My first time to buy a bike. Really.

    • Nathan Ramirez says:

      Hi Mr. Collins,

      You’re on the taller end of your category so I would suggest a 19″ frame unless you intend to get one with front suspension you may consider going down to an 18″ frame.

  • Eileen Becker says:

    I am 5′ 1″ tall with a 29″ inseam. Would a 44 cm Mercier Elle be too small for me?

  • Eren Kaplan says:

    Hi Jeff,

    It’s amazing how many people you have responded to and helped with this confusing aspect of bike buying, especially during these times of online buying! It would be great if you could help me with this too!

    So I’m 177cm tall, pretty flexible and my leg inseam is 83cm. I’m going for a pinnacle arkose 3 https://www.evanscycles.com/brand/pinnacle/arkose-3-2021-gravel-bike-915761. I fall between M and L but want to make the right choice. Any help would be very much appreciated!

    • Jeff Balton says:

      Hi Eric,
      Your bike frame falls under the large category. Your sweet spot falls somewhere here: 56-57-58 cm. Yes that’s a good gravel bike.

  • Leigh Harris says:

    Jeff, this is a great resource. Thank you!

    Do you have advice: I am a 5’10” female, with a 34.5″/87cm inseam, and longish arms with a shorter torso (yep, all limbs).

    Your charts show a road bike for me is 61cm, or 56-58cm, or 58cm.

    Do I get a 58cm, and extend the handlebars with a longer stem to make up for my shorter torso?

    Thanks for your help!

  • Cheryl Lee says:

    Hi Jeff, thanks for the informative article. I am 5’3 (160cm), and am planning to buy a Polygon Cascade 3. Would a Small or Medium frame be a better buy /fit? Thanks!

    • Jeff Balton says:

      Hi Cheryl,

      One with 15” / 16″ under the small category is good enough for you. That’s a good brand. The 100mm front suspension is adequate for any off road/gravel experience.

  • Judy says:

    Btw road bike

  • Judy says:

    I am an interesting fit, i think. I am 5’8 inches tall, and have a 33″ inseam. The inseam seems like a liv large will do, but my height seems medium. https://www.sefiles.net/images/library/features/avail-3-sizing.PNG

    • Jeff Balton says:

      Hi Judy,
      Yes sometime they do overlap because we have different body geometries. I’d say that you stick with the medium frame and so incremental adjustments from there. These adjustments can be about saddle angle,fore & aft, saddle height and also stem length. And get a proper bike fit if you can 🙂

  • George says:

    Hi Jeff, I am a little bit confused. I am a male 171cm in height with an inseam height of 77cm.
    I want to buy a specific bike that has a size calculator. According to it I must have a 50cm Small bike.
    However according to your charts it seems I have to buy a 54cm or Medium bike.
    The problem is that there is no availability to the store to test drive it….
    What should I do?
    Here is the link of the bike where the size calculator is
    Am I doing something wrong? Which size do you think I should get on the specific bike?

    • Jeff Balton says:

      Hi George,
      There is really no “accurate” or “perfect’ chart for all due to our physical differences. However, as long as we fall within the range then we can make little changes in terms of stem length, saddle fore/aft, saddle angle and seatpost height.
      For hybrid and touring bikes, here’s the chart:
      5`5`-5`9` 165-175 cm 26-31” 66-78 cm 16” Medium

  • Hector says:

    Hi Jeff! Thanks for your excellent inputs. I’m 184 cm, male, weighing 92 kg. I rode a mountain bike a few years ago (very little) and would like to get serious about it. Is it alright for me to get into a road bike directly or should I go through with a hybrid first? Also, your advanced chart tells me that I need to go for a 58 cm XL bike. Is that ok for a beginner like me too?

    • Jeff Balton says:

      Hi Hector,
      There are things that you need to note when switching from MTB to road bike:
      1. Road bike demands more body flexibility as the position is not relaxed or upright compared to MTB. You need to take note of this as it’s been a while since you’ve been on a bike based on what you said.
      2. You will feel every bumps and inconsistencies of the road when you ride a road bike.
      3.I suggest to you try borrowing a road bike and then go for a spin. You will realize something along the way. Don’t buy one yet before you are sure that it’s the kind of route you want to go.
      4. This goes for buying a hybrid. Test it first.

      Yes the chart is right. That’s your size.

  • Anand says:

    Hi, I’m 5.5 inch tall order a Polygon Cascade 4 Sport MTB and it’s size 18″” (Medium).

    Please tell me, Is it good to go or should buy small version (16″”) ?

  • Diana L Villarreal-Reid says:

    My son is 5’6 32.5 inseam and wants mountain bike. What would you suggest please?🙏

    • Jeff Balton says:

      Hi Diana,
      He is within the medium range. Here’s his size chart:
      5`5″-5`9″ 168-178 cm 26-31” 66-78 cm 16” / 17″ Medium

  • Giwan says:

    Hey there, i got a road bike aero type size 48 (168-175) factory said it suit me bcz my heiht 168cm + 78.3cm inseam. The smaller one 46 (x – 168) so i decided to take the 48 size. But i feel somthing uncomfy with it my wrist kinda hurt especially right hand. I thought maybe my reach its too long for me 48 + 100mm stem within. But my calculator and ur table above result its frame recommendation for me is 51(ETT 56 +90mm stem). How explanation with this, my 48 make me think its too long, but how 51 will suit me up? Where do i find something unusual in this my current frame itself or my perspective. Thanks

    • Jeff Balton says:

      Hi Giwan,
      Did you really check our chart? Here’s our road bike chart. Our recommendations are pretty standard
      :5`6″-5`9″ 168-175 cm 54-55 cm Medium
      Now if your wrist is hurting it is something to do with your saddle angle. If the nose is facing down, it will push your body weight to the handlebars and it will cause pain. Make sure the saddle is level.

  • Delelegne Yeabsira Tamerat says:

    I am around 5’8, is it possible for me to ride a 50 size bike?

  • Aaron says:

    Im a 5’10.5 male. My friend is selling his specialized hybrid. It has a 19” frame. Will that work for my height?

    • Jeff Balton says:

      Hi Aaron,

      Here’s your chart: 5`9″-6`0″ 178-185 cm 27`-32` 68-81 cm 17″ / 18″ L

      That’s an XL. It might create issues in the future.

    • Aaron says:

      Ok, Thanks Jeff. May I know what type of issues I could run into? I don’t know a lot about bikes.

    • Jeff Balton says:

      Well, one of the issues you might encounter with poor bike fit is lower back pain. I am saying this not just from people who have experienced similar problems; but also from personal experience. A more oversized frame will make you stretch your hands and body, making it strain. You might also have issues with control. A bike that fits you properly will feel handy and easy to maneuver. These are the few things that worry me when it comes to improper bike fit. There are certain adjustments: lowering the saddle, shortening the stem, and adjusting the handlebar angle. But this does not guarantee that you will feel comfortable. Although, I must say that no two people have the same body shape or geometry. Some bikes will not fit on a person of the same height(longer torso vs. shorter legs and vice versa) but will be ok with another.

  • Lorraine says:

    Hi I am looking for a bike for myself and my husband. I’m 5 11 and have an inside leg of 33 and my hubby is 510 with an inside leg 29 can you advise what size of tire and frame we should get?

    • Jeff Balton says:

      Hi Lorraine,

      Here’s your chart: 5`9″-6`0″ 178-185 cm 27`-32` 68-81 cm 17″ / 18″ L

      Are you getting a hybrid, a road bike or an MTB?

      For MTB you can get a 27.5
      for Hybrid, it’s 700c and the thickness should be 35mm is you are into commuting.

  • Cat says:

    ? I’m 5’9 and looking to buy a bike. What size do I need?

    • Jeff Balton says:

      Hi Cat,
      My question is, what kind of bike would you like? MTB, City Bike, Road BIke or Cruiser? Generally you will be ok with a 16 – 17″ frame size(medium).

  • Gatis Dravnieks says:

    I’m a 6’4” man; What TIRE size goes with a 24” mountain bike frame?

    • Jeff Balton says:

      Hi Gatis
      A 29″ is a perfect tire size, not just in terms of your capacity but also for aesthetic reasons 😉

  • Robin says:

    Hi Jeff! Thanks for the article!
    I have a unique problem in that one of my legs is shorter than the other by a centimeter or two. I’m 5’3″ otherwise but how would I determine what size I need?

    And for some reason i’ve seen either 5’3″ need a bike that’s 18 or 26. Why is this? Is it because of my gender (female)?

    Thanks so much!

    • Robin says:

      p.s. I’m looking for more of a cruiser bike. It does need to do hills a bit but I favor more of the retro look and I’ll mostly be riding it around town.

    • Jeff Balton says:

      Hi Robin,
      Cruisers are the trend these days. With the explosion of local bike cafes, you are on the right track. Do check my article about Electra Townie Cruiser Review

    • Jeff Balton says:

      Hi Robin,
      A 15″ or 16″ frame size is good for you. I’d recommend the 15″ for allowance. You can also lower down the saddle a little bit. 26″ would refer to tire size I think, and not the frame size.

  • Chris says:

    Hi. I’m buying my first new road bike. I’m looking at a Planet X Spitfire. I’m 5′ 6″ with a 29.5 inside leg. What size should I be looking at?

  • Peter says:

    Hi Jeff ,
    I haven’t rode a bicycle for years, but would like to get back into it, I am 5” 9” tall and have an inside leg measurement of 34” am looking at a Merax Finiss bike as it has suspension, but haven’t got a clue regarding the size i need, either frame or wheel.
    It used to be just wheel size, but all changed from penny farthings now, would you be kind enough to advise please

    • Jeff Balton says:

      Hi Peter,

      I’d recommend a frame of 17″ / 18″ which is under the large category. 17.5″ is not a bad size. If you want to go smoother on rocky surface then a 29″ is ideal. Yeah there are many wheel sizes nowadays it’s amazing.

  • Alan says:

    Hi my name is alan.
    My high 6. 3 190 cn.
    What is right size bike thanks

  • Jo Reid says:

    Hi my names Jo, am female and looking at a womens 17.5 cm bike and I am 186cm tall. Should be comfortable?

  • Delia says:

    Hi there,

    I am a 40 year old female and 157cm tall. What size frame in inches should I buy? I’m currently eyeing a 26″ mountain bike 21 speed.

    • Jeff Balton says:

      Hi Delia,
      You should get a 15” / 16″ size MTB. This is under the “small” category. 26″ offers responsive navigation.

  • Sudipto says:

    Hi Jeff, I’m 174cm weighing 198 pounds, inseam 81cm. Planning to buy Trek Marlin 7 “Medium” since size “M/L” is out of stock. Will Medium size be okay for me or do I wait for M/L.

    • Jeff Balton says:

      Hi Sudipto,
      Just my suggestion, it is better to wait and get the right size for you than venture into something that will cause you discomfort or even injury. Yes get a medium 16” / 17″.

  • Lynne Earnshaw says:

    I’m completely confused lol my daughter and I wish to purchase Mountain bikes – I am 5ft5 and she is 5ft 1 – what size frame should I be buying for us both… help !!

  • Seana Holy says:

    Hello… what size do you recommend for a 6’8” man?

  • Job says:

    Hi Jeff,

    Great article. Ordered the Triban RC 120 as my first road bike in Size XL. I am 6’3, inseam 35 and weigh 220 pounds. Just checkin this is the right size for me, correct? Because i fall in the measurement from Decathlon a bit in between L (height 180-190 cm) and XL (height 190-200). In cm i am 191, and i read so much that they advice the smaller one. But i want a comfortable ride instead of agressive.

    Thanks in advance!

    Greetings, Job

    • Jeff Balton says:

      Hi Job,
      Sizes recommendations do overlap. Here’s your chart:
      6`0″-6`3″ 183-191 cm 58-59-60 cm XL
      6`3″-6`6″ 191-198 cm 61-62-63 cm XXL

      So you still got the right size but not lower than 60 cm. You can do something with the length of the stem but that’s it.

  • Grant says:

    I am 169cm tall. and I weigh 70kg. I wish to buy a 29″ Mountain bike. Please advise.

    • Jeff Balton says:

      Hi Grant,
      Yes a 29″ but with the frame size(s) of 16” / 17″ under the Medium category.

  • Mark says:

    Hi Jeff I’m 6 foot 4 Inches in hight and my partner bought me a mountain bike but I think the fame is on a 26 inch.. What síze should I be using..

  • Jason Scott says:

    5’11 M 31″ inseam
    What size gravel bike would I need?
    Already have a large xc bike and it seems a bit large.

  • Christian says:

    Hi, my height is 177cm and I’m planning on buying a 29er. Is that a good one or 27er would do? Thanks!

    • Jeff Balton says:

      Hi Christian,
      Based on your height, you need a frame size around 16” / 17″ under the medium category. It is really up to your riding preference. 29″ is bigger and will run smoother on gnarly paths like rock gardens etc. However, a 27″ would be easy to maneuver and is more responsive than the former.

  • Charlotte says:

    Hi Jeff,
    I am looking at getting a new hybrid, the one I like comes in a 15″ or 17″.
    I am only 5’4″ but have an inseam of 76cm. I have had a 16″ in the past and it has always felt to on the small side. Do you think the 17″ will be too big?
    I have used a larger bike before, I’m not sure what size exactly, which felt ok but I am looking to use this bike more often and want to insure I’m getting the right size. Unfortunately the stores around me are only open for click and collect so I cannot go in get any advise.
    What do you suggest?
    Thank you in advance for your help.

    • Jeff Balton says:

      Hi Charlotte,
      Based on your height, your old bike has your ideal size. I suggest you stick to that one, or a 15”. 17″ will be too big.

  • med says:

    Hi I am 175cm and my leg inseam 81cm can I ride a 52 bike

    • Jeff Balton says:

      Hi Med,

      Are you talking about a road bike? If that’s so then this is your size category: 5`9″-6`0″ 175-183 cm 56-57-58 cm L so the answer is no.

  • Gary says:

    I am 6 ft and have a 87 cm inseam
    Would a 58 cm road bike best ?
    I have a 59 cm now and am buying a second bike.

    • Jeff Balton says:

      Hi Gary,
      Here’s your chart: 6`0″-6`3″ 183-191 cm 58-59-60 cm XL

      Although I would also suggest a bike fit.

  • Adam says:

    I am going to buy Salsa Fargo. I am 185cm high and inseam 87cm. Will L be the right choice?

    • Jeff Balton says:

      Hi Adam,
      That’s a good brand! Their bikes are very popular now, with the bikepacking and bike touring fans. Here’s your chart: 6`0″-6`3″ 183-191 cm 58-59-60 cm = XL . You need a slightly bigger one for your size.

  • Lott says:

    Hello. Can I get a decent mountain bike under 400 dollars ?
    Family rides on the road but definitely want to hit the trails as well.
    I’m 6ft1 .

  • Darrell says:

    I am 6’2″ and recently changed from a 58CM road bike to a 56cm bike. According to the chart I should probably be on a 56 but it feels too small. I had to extend the headset and move the seat back. It helped a little, but when i am stopped at a light my foot prevents the turning of the wheel cause my shoe sticks out past the rear of the Front wheel.

    Is this common in the stopped position to be touching the front wheel with the up pedal foot?

    • Jeff Balton says:

      Hi Darrell,

      Yes this is a common thing among race bikes to have this issue. It is not something that you should be alarmed.

  • Roman says:

    I’m a bit confused. My height is 183cm and inseam 83cm. I’m going to buy Orbea ORCA and according to their sizing chart I need 53 frame size, however according to your chart I need 56. Orbea doesn’t have 56, there is either 53 or 55 frame size. Can you give me and advice what size should I choose?

  • Tia says:

    I purchased a men’s (I’m a woman) diamondback wildwood (city/hybrid/comfort) bike several years ago and have just decided to start riding it. I am 5’4 and the frame is 17”. I feel comfortable on it, but should I consider purchasing another bike in a small (15”) size frame? Thanks in advance!

    • Jeff Balton says:

      Hi Tia,
      A 17″ frame is bigger for your size(even though you feel comfortable on it). I think that if you can upgrade to a new bike, have a suitable on that suits your size. Yes a 15″ should be perfect.

  • christian says:

    hi sir jeff im 169cm but my inseam is 73cm
    what size of top tube and seat tube do i get for my road bike

    • Jeff Balton says:

      Hi Christian,
      Here’s your size chart: 5`6″-5`9″ ft (168-175 cm) frame size between: 54-55 cm Medium

  • Rick j mowrey says:

    I am 5’2” what size wheel should i ride

    • Jeff Balton says:

      Hi Rick,
      In cycling, it’s frame size that really matters. For you, 13″ to 15″ should be comfortable. 26″ would be easy to navigate.

  • Parker says:

    Hey Jeff, I’m 6’3 but only 14. I’m looking into a new downhill bike, most likely a YT tues pro. I would like to know if I should get a large frame or XL.


    • Jeff Balton says:

      Hi Parker,
      You better get a 19″ + (XXL) because you will be uncomfortable on large and XL frame. Get a proper bike fit too. Cheers!

  • Ray says:

    Hey Jeff, thank you very much for such an informative website! I can feel your passion by your frequent update to your articles. I also enjoy the very first picture of this article. 😀

    A question here, though. This article mentions many methods, which sounds great, but then what is the single source of truth?

    For example, my leg inseam is 29 inches (=74cm), the method 2 suggests that my city bike should have 0.685*inseam = 20 inches (=51cm) frame (which happens to be very close to the example you gave in method 2 already). But then, method 3 table 2 gave a “leg inseam 26~31 inches -> frame 16 inches” or “leg inseam 27~32 -> frame 17 inches”, those are noticeably smaller than the result of method 2. Which one should I trust?

    All that being said, is it true that, based on the theory of maintaining that “nice bend on the knee”, one should aim to find a frame such that “lowest seat height – lowest pedal height = inseam – several inches”?

    • Jeff Balton says:

      Hi Ray,
      To answer your question Philosophically, the best source of truth is your own body. That means there is no ‘one size fits all’ even when we use the charts. All categorical sizes overlaps and a centimeter can make a difference in your comfort. If the bike is too big for you, then you can make adjustments in seatpost fore and aft or height. You can also make little adjustments on the stem length. So my method:
      1. Look for the frame size closet to your body size
      2. Do a bike fit and make incremental changes based on those things I have mentioned.
      3. Listen to your body. If you are too particular in the math you might forget the fact that we all have different body structures(longer torso/shorter legs etc).

  • Alfonso says:

    Hi Jeff regarding to my last comment I’m looking to buy a mountainbike frame but again the only size is XS and my height is 165cm and my best frame size is S should i buy the extra small?

    • Jeff Balton says:

      Hi Alfonso,
      No, get the small one. You are under small but you are also near the Medium category.

  • Seema Gupta says:

    Hi Jeff, thank you for the revert as you suggested to go for a smallest one but on that one her knees are bending ..and as per her inseam size 20 size wheel is suggested .though I find it a little bigger for her age but she is able to peddle .m totally confused ! Can you help .

    • Jeff Balton says:

      Hi Seema,
      Ah ok thanks for adding that info. Indeed there are situations like that. How about this: you can get the 20 but also try to lower the seatpost. That would make it easier. Let me know about the update.

  • Seema Gupta says:

    Hi Jeff , my girl is appx 110-112 cm of height age 6 yrs and inseam size is appx 22 inches .should I go for a 16t or 20t size for her as 18t doesn’t come in kids range ( this is what I have been told by the dealers ) An early revert would be highly appreciated !


  • Alfonso says:

    Hi Jeff my height is around 165cm and im looking to buy a new bike frame but the only available is XS should i buy it or not? All of the outer sizes are not available anywhere

    • Jeff Balton says:

      Hi Alfonso,
      Below are the ranges that are suited for you(Small) supposing you are going for a different kind of bike:
      City Bike/Hybrid:63-76 cm 15” S
      Road Bike: 51-52-53 cm S
      Mountain Bike: 63-76 cm 15” / 16″ S

  • Jaka says:

    Hi Jeff
    I need a road bike for me. My height is 177cm and my inside leg is around 79cm-81cm. Right now i can buy FOCUS bike size L but I don’t know if I have to go with M or maybe witch frame size? 52? 54?
    Thank you!

    • Jeff Balton says:

      Hi Jaka,
      I suggest you go with Large as it is your size range.
      Here it is: 5`9″-6`0″ 175-183 cm 56-57-58 cm L

  • Rakib says:

    Your methods are really easy to choose a perfect size bicycle.

  • Tonmoy S says:

    Hello Jeff, my height is 165cm and my inseam is 78cm. I want to buy a Trek Domane road bike. According to your website, my frame size will be 52cm, but at my nearest Trek store, the 54cm frame size is only available. If I need the 52cm one, I will have to wait till March 2021. I have checked the road bike at the store and I could easily stand over the bike with enough clearance from the top tube. Shall I purchase it?

    • Jeff Balton says:

      Hi Tonmoy,
      You are size Small and the only available bike is a Medium. Clearance while standing is not only the thing to consider. You have to think of the reach when you grip the handlebars. This can be adjusted by stem length, saddle fore & aft etc. It is up to you but you need to think of comfort especially during long rides.

  • Vicki says:

    Awesome article Jeff, and so cool to see your responses to questions! Hope you can help us too. My son has outgrown his old hardtail so we’re looking for a replacement. He is 161cm tall with 77cm inseam, which puts him in both the small and medium frame sizes. Given he’s growing fast, and has such long legs, would you recommend the medium size or go with the small? Thanks in advance for taking the time to help us!

    • Jeff Balton says:

      Hi Vicki,

      That is a tricky question. Is he going to use the same bike for quite a while? You can get the size that’s recommended for him and then perhaps have it replaces after a year or two. I am thinking along the lines of comfort and stability.

  • Simon McCallion says:

    Looking at your different options, for me to have a road favouring hybrid, I would need a 20″ frame by my height, 6’3, or 21″ by inside leg (31.5″). But, your later chart suggests 19″.

    Is it therefore best to go for 19″ and raise the saddle (is that what is meant by lengthening the stem?)? If so, should I then raise handle bars with spacers as well, potentially?

    Your time and patience in responding would be greatly appreciated.

    • Jeff Balton says:

      Hi Simon,
      Yes they do overlap and indeed sizing can be complicated. Yes to all your suggestions. Don’t forget stem length 😉



    Need a bicycle for fitness, my height is 5’10”, and weight is 90kg. Am looking fatty,can anyone suggest me which kind of bicycle is suitable for me.

    • Jeff Balton says:

      Hi MD,
      Fat bikes are exciting. You can check out my post about it. You can also see if a cruiser is something you would consider. I also suggest you get a 17″ frame size which is under the large category.

  • Elizabeth says:

    Hi, Jeff, thanks so much for this post! I am shopping for a new bike and keep coming back to this article for reference.

    I’m torn between an S3 and an S4 (M and L, essentially) mountain bike. I rode my brother’s large a few weeks ago and it felt a bit unwieldy (big, hard to turn) in the tight single track turns but was felt comfortable otherwise. This weekend I bought an S3 2021 Stumpjumper and it feels a bit small (front to back), except in the tight turns. (My brother’s bike is a L 2019 Stumpjumper carbon, mine is new but alloy–they changed the size labels since he bought his.) I’m torn!

    I only have about a half-inch left to move the seat back. Sunday’s ride (the only one on my new bike) was mostly sidewalks because the trails were too wet. I had a hard time getting comfortable and felt like I needed more “space” from my seat to my shoulders/hands. I also felt like the seat could have been a touch higher, though it was objectively fit to the right height before we started.

    I have an unusually long torso for my height (5’8″) but can’t find any metrics on using torso height and arm length to determine size. All of the other charts are slotting me into an S3 (leg length, height, ankle height, lower leg length, etc.).

    Any suggestions?? I’ve tried contacting the shop, and Specialized, but as I’m sure you know their phones are all busy and I only have until Saturday to return this one if it’s the wrong size. Also, the more opinions, the better right now! Thanks so much!!

    • Jeff Balton says:

      Hi Elizabeth,
      That’s not a problem. There are times when sizes overlap. I suggest you go for the stem length. If the bike feels too big, shorten the stem. If it feels too short, lengthen the step. But word of caution: make incremental changes in centimeters.

  • Rohit sawant says:

    Hi this is Rohit and my height is 6 feet 3 inches, please suggest me proper size in hybrid bike.
    Thank you

  • GV says:

    My height is 179cm, leg inseam – 87cm.
    Looking by height I should choose 17″ frame for mountain bike, by inseam – 21″
    Which measurement is more accurate?
    Or I should go for something between 17″ and 21″?

    • Jeff Balton says:

      HI GV,

      Go for the 17″. That is within your range. If anything feels to big or too short, make an adjustment on the stem length.

  • prathima says:

    Hi Jeff, i am 5’6 (167cm) my inseem is 31 inch (79cm) which fixie bike i need? In my place only two frame sizes are available. M46cm and L53cm. These fixie bikes are said to be designed in England. should i purchase any of these or refrain from both and look for another brand/make?

    • Jeff Balton says:

      Hi Prathima,
      Fixies are still road bikes after all. You look for 54-55 cm or Medium frame size. These are way too small. I would prefer you look for something you can test or have a bike fit. If not, then go for something that has your frame size rance.

  • Lumantam says:

    Hi, I’m getting a city bike my height is 176cm and 52-53kg and my legs are way longer than my torso what bike size is the best for me

  • Xaris P says:

    Hi, I’m 5’2 should I get a 15.5-29er or a 17-27.5? Thanks!

  • Sunny says:

    Hi Jeff ,
    I am 1.65m height , 62.7kgs weight , 76cm leg inseam . May I know what mountain bike frame size suits me? Thanks in advance .

  • Angela says:

    I just bought a bike xs. The guy in shop said its a good size yet I’m 5ft 4in . What should I do?

  • JT says:

    Thanks for the post! Shopping for my young teen. Currently 5’5” inseam 30.5” but growing fast! Looking for sizing and hybrid bike recos!

  • Daniel Robinson says:

    4 foot and 11 inch tall female and need to know the right size bike for me. Please help

    • Jeff Balton says:

      Hi Daniel,
      As long as you don’t go beyond the 13 – 15 inches frame size range you will be ok.

  • Herbert says:

    Hi im 6,2 with 88kg what bike size should i get?

  • Sergie says:

    What is the best MTB for me my height is 5’6ft and my weight is 147 lbs?

    • Jeff Balton says:

      Hi Sergie,
      As long as you stick within the 15 – 16 inches range you will be ok. That’s Small by the way.

  • Matt says:

    I am 5’7, and 115 kg, what MTB fitted to me? L or M, and can 27.5er handle my weight? or should I go to 29er?

    • Jeff Balton says:

      Hi Matt,
      You belong to the “Medium” category. Yes a 27.5er can handle your weight. A 29er will run smoother on rock gardens.

  • Lana says:

    I’m the luckiest one 🙂 15” frame for a mountain bike feels so uncomfortable for me, and 16” seems a bit big. How can it be? “D

    • Jeff Balton says:

      Hi Lana,
      A cm can make a difference and your situation is normal. Try to make adjustments with the stem length(get longer or shorter one) and I tell you the change is dramatic.

  • Aseem Sharma says:

    Hey! That’s such an exhaustive post. I’m 177 cms and weigh 116 kgs and have a large frame. I’ve booked the Btwin Rockrider ST100. 27.5cm tyres, XL size (suited for 180-195 cms) Should I cancel?

    • Jeff Balton says:

      Hi Aseem,
      Yes, centimeters can make a difference in comfort and handling. I suggest you get a frame size suited for your height.

  • Ryan says:

    Great article

    Im 176cm tall
    78.75 inseam

    Going from a BMC roadmachine in a 54, to a Tarmac SL7. I think the bikes will be way different but while i want the more aggressive position i also would like to make sure im not too stretched. Ive ordered the tarmac frame in a 54, which comes with a 100mm stem. should i consider a 52? Or stick with 54 and adjust seat, stem as needed?

    • Jeff Balton says:

      Hi Ryan,
      You fall under the Large category and your size ranges are: 56-57-58 cm. 54cm is medium which is a little bit smaller for you.

  • Kimberly King says:

    Hi, I’m thinking of buying a Hybrid and not sure if I should get a XS or small. I’m 5’3.

  • James L says:

    Hi. This article is awesome, has made things make more sense to me.
    Any advice on what I should go for with an 86 cm inseam, 198 cm tall and about 130 kg weight? I know how to cycle, but never was into it. But now I am a daddy and my son is 4, loves his bikes rides and I don’t love the running after him no more. Need a bike for casual bike rides in the park with him. Maybe off road as well. Any suggestions please?

    • Jeff Balton says:

      Hi James,
      You are quite tall so I’s suggest you get a frame size that’s 19″ under the XXL category. If you love both road and offroad riding then getting a hybrid bike is a good choice.

  • Jack says:

    Hi,I”m 5’8′ tall, going to take my new MTB.
    Isn’t 17′ frame size I can make it?
    And isn’t 27.5″ is too hard for me, or 26″ is better choice?

    • Jeff Balton says:

      Hi Jack,

      17″ is perfect and it still falls under the ‘medium’ category. 27.5″ is just right. 26″ is too small imho.

  • Sier says:

    Hi, i’m 5’2 and 73kg not know how to ride a bike til now 🤣 planning to get my first bike. When i asked the sales man he showed me the kiddie size ☹️ For me. Im confused of bike sizing

    • Jeff Balton says:

      Hi Sier,
      A 13 – 15 inches frame is suitable for your height. These are under the small category.

  • Bill says:

    So I’m not sure I did a good job of explaining my question. I want to buy a used women’s modelDiamondback AirÉn two, 50 cm. I’m a male, 5′ 8 3/8″ tall, with really short legs, 28″ to 28.5″. The formula inseam X .7 for a road bike gives me right around 50 cm for my size, whereas my height would tell me I needed a larger frame, 52 to 54 cm. What do you think? If necessary, I could get a lay back seat post. Thanks again. I’ve really enjoyed reading all this info.

    • Jeff Balton says:

      Hi Bill, I understand what you mean. Your height belong to the medium category with recommended frame sizes of 16 – 17 inches. That still translate to the same category for road bike but we have unique body builds so your legs might also need a smaller frame size. A layback saddle and a longer stem would help this. Also please have a bike fit that way you can explain your situation and have these problems solved.

  • John Zick says:

    Hi Jeff,
    I’m 5’8” with 29” inseam. Was able to obtain Cervello P3 triathlon bike that is 56 cm
    Is it worthwhile to get a professional fitting? Or is the bike just too big. Very helpful article

    • Jeff Balton says:

      Hi John,
      56 is still within your range but a bike fit will improve comfort in terms of finding the right saddle angle and stem length. Do get one. Cheers!

  • Sol says:

    Hi, I am 5’4.5” tall. I am considering buying a 21-speed bike from a friend. It’s 26”. Is that a good size? I am so confused 🤷🏼‍♀️… I want to enjoy my ride for exercise and movement.

    • Jeff Balton says:

      Hi Sol,
      16″ is ok for your height but please test the bike first. Also get the frame size. Your recommended frame sizes are 15 – 16 inches.

  • Annabel says:

    Hi Jeff – Many, many thanks for this great article! This is so helpful!
    I am looking to get a secondhand road bike. It’s 16 in with 27.5″ tires and I’m only 4’11”.
    If it’s too big, do you think a shorter stem will help to make it fit better?
    Thanks in advance!

    • Jeff Balton says:

      Hi Annabel,
      For your height, the bike size should be 13 – 15 inches. That roughly translates between 47-48-49 cm range or XXS. You can shorten the stem but there will be an effect in handling. I suggest you get a proper bike fit.

  • Norliza Astang Esmael says:

    Hi, this article is so helpful. I am a beginner. My height is 5’5. What size of MTB is suitable for me to buy?

    • Jeff Balton says:

      Hi Norliza,
      Welcome to the world of MTB! You will be ok with 16” or 17″ medium size frame.

  • Christopher Jones says:

    Hello, I’ve found a “Road” bike I really like but it’s only available in a 55.5 cm frame. I’m 6ft 1 and a smidge, not quite 6.2. My inseem if I’ve measured it correctly is showing at roughly 83.7 cm.

    Will this 55.5 cm frame bike be suitable for me?


    • Jeff Balton says:

      Hi Christopher,

      The bike is medium size. You are bordering on the XL category. Although you can make some changes ike buying a layback seatpost and getting a longer stem, there will still be a noticeable odd feeling in terms of handling. You should be ok with frame sizes 58-59-60 cm.

  • Davids says:

    Hi, Nice post. I’m 179cm tall (in between size M and L) so I don’t know if I have to go with M or L. I don’t have my inseam measure right now :/ What size you recommend?

  • Laith says:

    Hi Jeff, this article is super helpful! I just need some final confirmation if you could help, that would be much appreciated!

    I’m torn between a very good 53cm Wilier and a good 56cm Cervelo. I’m 183cm/6’0″ tall and my inseam is 83cm/32″ and a bit. The seller insists that with a few adjustments (stem, seat, spacers), the 53cm Wilier will fit perfectly, whereas my heart tells me that the Cervelo even if it’s a bit older could fit me well without adjustments. Do you think the adjusted 53cm could work for someone with my dimensions? Thanks!

    • Jeff Balton says:

      Hi Laith,
      You overlap between L and XL. 53 is already small so even if you make adjustments it will still affect your handling. I’d say go with the larger bike.

  • Nir says:

    Hi Jeff, this article is so informative. I’m a 32 year old weighing 95KGs, could you help me out choosing the right frame size & tire size?

    Thanks in advance.

  • Tiziana says:

    Hello. I have just hired a Swapfeit bike for a long time, it should be a city bike I believe. My question for you is: does the size of the wheels matter and/or does it have anything to do witht the frame size? I have always used a mountain bike in the past, with smaller wheels than this, and it was more comfortable, not sure it’s just because I have to get used. I have used this bike today and there is something uncomfortable in riding it, from a first look seems that the wheels are too huge for one of my height (160cm). Could you please tell me if wheels diameter needs to be no greater than a certain number, considered my height? Thanks

    • Jeff Balton says:

      Hi Tiziana,
      The most important thing to consider is frame size. The wheel is secondary. I would suggest you get a small frame. A 24″ cruiser tire will feel comfortable.

  • Robert says:

    I’m 6’2 , 250 pounds and don’t know what bike size I need? Help?

    • Jeff Balton says:

      Hi Robert,
      Are you riding a road bike or a mountain bike? For road bikes you fall under the 8-59-60 cm XL category. For MTB, get a 18″ / 19″ XL frame size. Oh, and don’t forget to get a proper bike fit.

  • Dimuth says:

    Hi Jeff,

    I am so far riding with MTB and now want to change to a road bike, hoping to to long distance. my height is 5′ 4″, what is the best suitable road bike for me.

    • Jeff Balton says:

      Hi Dimuth,
      You fall under the “small” frame size category. A 52-53 cm is your sweet spot.

  • Ivaan Basu says:

    thanks for sharing the list of Bicycle it can very helpful for me to choose the best cycle for my kid.

    Bicycle Online Shopping

  • ramboCepay says:

    What have you been up to? I am fascinated about covid19. Can you talk about it? If the same thread is opened please redirect my post :). Thanks :).

    PS: I don’t know any people with covid and you? rambo 😀

  • Carl says:

    Good day, I’m 5’10.5″ inseam of 33″, tried a 58 it felt like I was stretched a bit and the 56 felt more comfortable, guy says go with 58, initial thought was 56 more comfortable. I’m used to riding a hybrid type, more upright. What say you?

    • Jeff Balton says:

      Hi Carl,
      Your bike size belong to the Large category with sizes 56-57-58 cm. Choose what feels comfortable to you. A cm can make a difference.

  • WnC says:

    for someone who is 5’3-5-4′, does wheel size matter? I am interested in getting the Schwinn hybrid bike but I’m concerned it’s a 16″ frame and a 28″ wheel? Here’s a link with an example: https://buyingatbest.com/products/schwinn-discover-womens-hybrid-bike-700c-wheelswhite28

    • Jeff Balton says:

      hi WnC,

      Yes, 16″ is your sweet spot. I think you will enjoy the riding experience. Go for it!

  • Adam says:

    Hi Jeff,

    Thank you for a great article. I’m looking at purchasing my first road bike (a Specialized Allez Elite) but I’m wondering on the size. I’m 171cm with a 30 inch inseam and they have both a 52 and 54 in store. I’m right in between the two sizes. I’m leaning toward the 52 so I can raise the saddle and/or handlebars to find a good fit rather than not having the ability to do that if the 54 proves to be too big.

    What would you recommend?

    • Jeff Balton says:

      Hi Adam,
      You fall within the medium range with recommended sizes of 54-55 cm. Sometimes the body adapts to whatever size it is used to. If the 54 proves to be too big, maybe you can lower the saddle a bit? Let me know what you think.

  • Alexander says:

    Hello, I have a vintage mercier colombus 55ctc or 57 ctt. I am 1.83 cm and my instead is 83cm. I feel it a bit short. I increased the stem from 9.00 to 11.00 cm and I feel better but again something seems to go wrong.

    • Jeff Balton says:

      Hi Alexander,
      That’s a pretty looking bike! You belong to the 56-57-58 cm size range(Large).Your sweet spot is 58 cm. So yes it is a bit short. You will definitely feel it as it is a wrong size for you.

  • Alexander says:

    Hello, I have a vintage mercier colombus 55ctc or 57 ctt. I am 1.83 cm and my instead is 83cm. I feel it a bit short. I increased the stem from 9.00 to 11.00 cm and I feel better but again something seems to go wrong. Any recommendations? Thank you.

  • Jason says:


    I’m 6’5″ and someone is selling a 29″ road bike. Is it large enough for me?

    • Jeff Balton says:

      Hi Jason

      A category you should take note is the frame size. You belong to the XXL category with frames ranging from 61-62-63 cm.

  • Atila Pereira says:

    Hi, very nice website, especially for me who am considering buying a gravel bike right now
    I am 5.6″ (1.69cm) and thinking to buy a Jamis Renegade A1 51cm. Is this a good size or is it small?
    Thanks for the content.

  • LouB says:

    I am looking for a road bike for indoor use (i.e. zwift, etc). I am 5’2″, 125 pounds with 28.5″ inseam. Since it is strictly for indoor use, i am just looking for entry-level road bike types. I’ve seen Vilano bikes, are they any good? Any other bikes you want to suggest?

    • Jeff Balton says:

      Hi Lou,
      I posted about our best entry level bikes for 2020 recently. I think you can find something that will suit you. As for the size, you need something in the XS category. Somewhere around 49-50 cm.

    • LouB says:

      I saw 17.5 inch road bike. What adjustments can i make other than buying a new frame to make it a 19-inch bike.

    • Jeff Balton says:

      Hi LouB,
      Normally I would not recommend a bike size that is bigger than what’s recommended for your body size. But, there are things you can do to make something like that work for you.
      1. Lowering the saddle
      2. Buying a layback seatpost
      3. Getting a shorter stem
      Do let me know about the outcome

    • LouB says:

      Actually, the recommended size is 49-50 cm. The trek bike is 44.5 cm (17.5 inch). What adjustments can i make?

    • Jeff Balton says:

      If that is the case the following can be lengthened and replaced:

      1. Stem length should be longer
      2. Layback seatpost(ask your LBS about it if unsure)
      3. Saddle height

  • Richie says:

    Hi Jeff,
    Im getting a Vitus road bike from a friend, hes 6ft 4, im 6ft. Its my first proper bike, he used to race etc but the saddle looks super high, with that in mind would the frame likely be ok with for me with a lower saddle height?
    I dont know what frame size he has right now. But some of the sizes over lap, i think the lower end of his actual frame size could work with the higher height range of my suggested frame size.
    could it work?

    • Jeff Balton says:

      Hi Richie,
      That’s a good sportive bike for endurance ride. First what’s the frame size? He should be under the 61-62-63 cm XXL category. If that’s the case then you can lower the saddle. Also, check the saddle angle. Make sure it is level. Update me about the progress.

  • Caroline O’Dwyer says:

    I’m 6ft female readg to buy a a mountain bike, what size ?

  • Mark says:

    Hi Jeff

    Really appreciate the guide, thank-you! I am not quite understanding the bicycle frame size to order for myself. Wanting to purchase my first cyclecross bicycle. My height is coming in at 184cm ( charts above state 58cm bicycle) whilst the inseam is coming in at 83cm ( charts above state 56cm bicycle).

    Bicycle purchase options come in 56, 58 or 60cm frame sizes

    Do you have a recommendation as to which way to go before ordering online?

    Many thanks!,


  • Aaron says:

    Hi Jeff, I’m 5’8” with 29” inseam. Would I fit on a Small size for a BTWIN Riverside 100 or a Medium size? I’ve got an old bike that’s similar to the Medium size and I’ve been riding quiet comfortably on that. Also, when I put on shoes I have orthotics inside as I need it for my feet (which gives me another 0.8” in height). Thanks!

    • Jeff Balton says:

      Hi Aaron,
      Yes, you still fall under the medium size range. I suggest you still get the same size because you had a comfortable history with that.

  • Josh says:

    Hi Jeff,

    I’m 6′ 1″ tall with a 31.5″ inseam. I have a large frame 27.5″ Diamondback mountain bike and I’m looking to get a gravel/ road bike. This will be my first graveler, so I’m not sure about sizing. Any advice would be appreciated.


  • Larry Scharff says:

    Hey Jeff I have a GT aggressor pro and I’m about 6-6’1 my bike is an XL is that ok for my size?

  • Carlos Colon says:

    Hi Jeff, loved the article and info you provided. In your expertise, what type of bike and measurements would you recommend for a 6’3” 220LB man that will be riding mostly on flat paved road and/or patches of rocky terrain?

    • Jeff Balton says:

      Hi Carlos,
      Thanks for the positive feedback. A 19″+ or XXL falls under your category. If you go for trail riding that’s not too hardcore, then get a hardtail.

  • Larry Maese says:

    66 year old male with 5’4″ body frame. What type of bike do I need to purchase for riding about in the city and paved bike trails?

    • Jeff Balton says:

      Hi Larry,
      If this is your first time getting a bike, then a should be a perfect bike for you. A 15” frame should be a comfortable choice.

  • Laurie Granitto says:

    Hi! I am looking for a bike for my 11 yo granddaughter for her birthday. She is about 5’2″-5’3″. Long legs. It’s all so confusing! What size would you recommend? She will just be riding around our neighborhood.

  • Melvin says:

    Hi Jeff. Your article is a big help before I decide to buy my mountain bike. I am 5’5″ and inseam is 29.5″. I’m considering buying a 2021 Trek Marlin 7. S size is fine with me but tyre size is 27.5. I prefer a 29 tyre but its available starting from M size upwards. Looking at Trek size chart, it seems that the minimum inseam measurement for M is 29.9″. Do you think it will be difficult for me to ride the bike if I take the M size? Also, do you think a 29 tyre is too big for my height?
    By the way, I will be using the bike for weekend biking mostly on flat roads and uphill climb. No serious mountain biking stuffs.
    Thanks a lot!

    • Jeff Balton says:

      Hi Melvin,

      Not really. A 16” / 17″ frame under the Medium category works good on you. There other things that you need to consider to optimize comfort. These are saddle height, tilt and forward/aft position. I suggest you work on these when you get your bike and see which position feels comfortable.

  • sravya says:

    Hello, I’m 5″3 and haven’t ridden a bike since young but am looking to try learning again. I am looking for a bike to ride in the suburbs. I was recommended to get a hybrid bike with a size small at a bike shop. so I was wondering what tire size I should be looking for?

  • Shenee says:


    I am 5’8″. I measured with a 33 inch inseam. I will be purchasing a road bike. Both a 54 cm and 56 cm bike have been recommended to me. I don’t know which to purchase. I did test ride both. On the 54 inch bike the seat had to be raised to the max level. The 56 inch bike is usually recommended for people taller than I. How do I make a final decision? Thanks

    • Shenee says:

      Sorry for mixing up the cm and inches. should be 54 cm verses 56 cm as you know

    • Jeff Balton says:

      Hi Shenee,
      Yes they do overlap and can be confusing at times. You still fall under the medium category. You should be ok with 54-55 cm frame sizes. 56 is over your recommended size. If you can find a 55 cm then that’s good.

  • Aviva says:

    Hello. Perhaps I’ve misunderstood something but I’ve followed all of your steps and I got the following measurements.

    First I measured from the crank to the seat clamp and my bike is 51cm/20″. I am 5’7″/170cm. According to your chart my bike should be 16″….so that means my bike is huge. It’s a hybrid/touring bike with 1.35″ road-ish tires for city use. I’ll put my thicker (1.75″) tires back on for more wild rides (summer touring).

    Then I did the inseam, and my measurements were 76m which gives me the following”
    City- 52cm
    mtn- 50cm
    road- 53

    So the 51cm I measured (from crank to seat clamp) is just in the middle of the “inseam measurements.”

    Now what?


    • Jeff Balton says:

      Hi Aviva,
      Based on your height, the recommended frame size is a 16″. This falls under medium. For road 54-55 cm. For mountain 16” / 17″ M. Overall, find a bike under the medium category.

  • Rakesh says:

    Hi, My height is 5.7. But i bought a cycle of 19 inches. Not sure what to do. Is it ok or shoukd i sell it off? Please advise

    • Jeff Balton says:

      Hi Rakesh,
      Is that a road bike or a mountain bike? XL is too big for your height which falls under Medium. Yes I think you need a bike that is suited for your size.

  • Shyam dwivedi says:

    Hi , iam 6.2 feet in height and took 29 inch rim with 17 frame……is it ok to ride on .

    • Jeff Balton says:

      Hi Shyam,
      You are riding a frame smaller than your recommended size:19″ + XXL. I would not recommend it because it will cause discomfort in the long run. The wheel size is ok though.

  • Wanda says:

    Hey I’m a 62 yr old female my height is 5’10 I want to purchase a bike just to ride around the city r my hood can you recommend one for me please and thank you

  • Em says:

    Hey! I’m looking for a bike for my sibling who is 5”9. My concern is she is overweight so I need to make sure the bike can support her. Thoughts?

  • Arthur says:

    I bought my first road bike im 5’5 the owner of the bikeshop recommended me to get a medium size roadbike but i feel something is of is it just because im new to road bike or the road bike is small for me

    • Jeff Balton says:

      Hi Arthur,
      The road bike chart is different from MTB chart. You might be labelled as ‘medium’ on MTB but you already fall under the ‘small’ category on the road bike chart. Your ideal range(s) are: 51-52-53 cm. 53 is your sweet spot. I you get a proper bike fit for those incremental adjustments.

  • Walter says:

    Hi I’m 6’2” and am looking at a bike with an 18” frame and 26” wheels. Does this sound ok?

    • Jeff Balton says:

      Hi Walter,
      Yes the frame size is ok. As for the wheels, it’s all about your riding style. 27.5 is the popular wheel choice these days, and they will look aesthetically pleasing for people of your height IMHO. Smaller wheels: manageable and light. Wider wheels: good for bumps and trails.

  • Walter Cline says:

    I’m 6’2” and was looking at a bike that has a 18” frame and 26” wheels.

  • Karunakar says:

    Hi Jeff,

    Am 5.10′ height, can you suggest which bike size will fit me, am looking for road bike with gear. Suggest me a good brand to start wirh.

  • Olivia says:

    Hello, I am 5’3″ with 30″ inseam. I tried the hybrid style in size small, but I had to extend the bike post so high. Unfortunately, they didn’t have size medium in stock that I can try. Could you advise the bike size that might fit me better between size small and medium? Thank you.

    • Jeff Balton says:

      Hi Olivia,
      Looks to me that you have chosen the right size for your height. A 15” frame size should be ok for you. You can try with the saddle tilt to see if it can make a difference in the riding comfort. Try to tilt it back a bit and see if it solves the issue. Try to also check the saddle fore and aft. Move it a bit to see if it accommodates your issue. Let me know about it.

  • Steve says:

    6’5” tall.
    What’s my correct bike size inches/cm?

  • Pankaj says:

    Hi, mu height is 5’9- 5’10 appx . I m looking for road cycle.Should I go for large size or medium size . Wheel size 26 or 27.5.

    • Jeff Balton says:

      Hi Pankaj,
      I assume you are talking about mountain bikes. Your frame size belongs to the large category. Choose 17″ / 18″. 27.5 is a good choice.

  • A A says:

    Thanks for taking the time to respond to all comments.
    I am 5′-11″ and have an inseam of 35″. I am looking at a road bike that is available in 54cm or 58cm. I believe I should go with the 58cm, but want to make sure this won’t be too big for me.
    Thank you

  • ZahidN says:

    I am a little confused, your table and formula calculations don’t match. For example using the mountain bike table for an inseam of 30″/76cm the recommended size is 16″/17″, but your formula suggests 30*0.66=19.8″ that is significantly off from the recommendation of the table. What am I missing here?

    • Jeff Balton says:

      Hi ZahidN,
      We are talking about inches as opposed to cm. No, you should not compare road bikes with MTBs because they are different. Remember, these are just size range that’s recommended and should not be taken with accuracy. We all have different body types. Little adjustments like stem length, seatpost height should accommodate the offset.

  • Yogesh says:


    I’m 5.6″, nearly 100kgs. Need a suggestion of buying a bicycle for daily cycling 10kms. Awaiting your response. Thanks.

    • Jeff Balton says:

      Hi Yogesh,
      Are you riding mostly on the road? You can check our list of entry-level road bikes. Let me know if this is what you are looking for.

  • Rajeev says:

    Hi, Jeff
    Am 5 ft 9inch height, I ride MTB (mainly with in city) 27.5″ tyre size and 17.5″ frame. I feel a lot of pressure on my wrists while riding. What are the possible reasons and what is the solution to take care of it.
    If it’s a problem with bike what possible remedy (other than buying a new correct size 😊)

    • Jeff Balton says:

      Hi Rajaev,
      Simple solution for that is to adjust your saddle tilt. Tilting the tip down will put all your weight on your wrists. Tilting the tip up will solve this issue. Make small changes though. Try it and let me know if it works.

  • Pradeep says:

    Hi. Iam 157cms in height, approx 5.1.
    I want to buy a bike for exercise purposes and is got roads and pavement for the same… Hence would prefer the road bikes, but all the road bikes seems to be big and I have no clue what to do… Any suggestions would be highly appreciated. I even thought to go for a mountain bike due to the height, and change the tire to road types… Could someone advise me which type and size of bike should I go for…

    • Jeff Balton says:

      Hi Pradeep,
      No bike is too large for anyone. You need to find the right frame size. According to our chars you need a frame size between 49-50 cm. This is under XS. Ask your bike dealer if they have this size. All road bikes have 700c tires. For beginners, a 28c or 32c is a good compromise.

    • Nevetz Nosnirc says:

      XS size or 49-50cm frame size for a road bike

    • Jeff Balton says:

      Hi Nevetz,
      Yes, that’s what the chart suggests. May I know if this suits your height?

  • Avinash says:

    Hi l am 6.2, l am interested to buy a bicycle, which size suitable for me and also which is the best bicycle. Waiting for your references.

    • Jeff Balton says:

      Hi Avinash,
      A bicycle with a 19″ frame size is a perfect for you. As for the kind of bike you need, please provide me further information about your riding style. Do you like riding road or offroad? Do you like gears or single speed? For starter, you can browse our many categories:
      Mountain BIke

  • Veronica says:

    I’m 5.4’ .. what’s my bike size ?

    • Jeff Balton says:

      Hi Veronica,
      You will be ok with 15 – 16 inches frame sizes. Your size overlaps between medium and small.

  • molly says:

    what’s my bike size?

  • Kshama says:


    From one of the post that you answered, I understand I need xs bike (4’11” & 150 lbs, 55 years old and have not ridden in years).

    My question is, how does XS convert into actual bike size? 20”,22”, 24” etc.? Thanks for your help.


    • Jeff Balton says:

      Hi Kshama,
      When we talk about sizing we refer to ideal frame size. For example on road bike that’s around 49-50 cm. On MTBs that’s a 14″ and below, while on city bikes/hybrid that’s also a 14″ and below.

  • Waleed says:

    Thanks for it but i need to know what inch frame e.g 16 inch frame . Also why is it so hard to find a bicycle thats like 16 inch frame ?

    • Jeff Balton says:

      Hi Waleed,
      Assuming you are looking for a Mountain Bike frame that’s size 16. A 16″ frame falls under Medium. This size is for someone who stands between 5’5 to 5’9. Do you fall under this range. As for your second question as to why it is hard to fine me medium size frame these days, the answer is simple. It’s due to the pandemic. I posted an article about that. Feel free to read and ask me any follow up question.

  • Carlos says:

    Hi Jeff,

    I’m almost 6 ft tall and there are no hybrid bikes with large frames in my area. I’m testing a hybrid bike with an XL frame which I haven’t taken for a long ride yet. Should I be concerned if I’m right a the border line of the chart? Thank you for your help.

    • Jeff Balton says:

      Hi Carlos,
      Size categories can overlap. YOu said you’re almost 6 ft. Perhaps a frame size of 17″ should be ok. That’s under large. XL might be a little bigger for you.

  • Waleed says:

    Hi . I am 5 ‘6 . Looking for a road bike . Can you help me buy a road bike around 100-150 pounds
    Also whats my frame size is it 16 inch if its . I cqn’t find bike that are 16 inch frame can you plz help me

    • Jeff Balton says:

      Hi Waleed,

      Your size fall under the medium category. Choose a road bike that’s around 54-55 cm. I posted an article about entry level road bikes. So far those are the only bikes you can have that will serve you well on your rides.

  • Ralph Vincent says:

    Hello Jef! Good day! I am planning to buy 2021 Trek Marlin 6. Can you help and recommend which frame size should I pick. I am 5’4″ in height with an inseam of 30-32″. Thanks!

    • Jeff Balton says:

      Hi Ralph,

      That’s a good brand. You better get yourself 15” / 16″ frame size. That’s under the Small category.

  • Brandon says:

    Hi Jeff,
    I’m currently at 58cm bike which would be a large, would it be fine to get an 59cm bike frame as my bike is it’s the last in stock. Would this make a huge difference?

  • Natasha says:

    Hi Jeff, so kind of you to answer all these questions so professionally.
    I’m trying to buy my 9yr olds son’s next bike. He’s 4ft 8″ tall, inside leg 25″. Am I right in picking a 26″ wheel and I’m also a bit stuck on the right frame size?

    • Jeff Balton says:

      Hi Natasha,

      You are welcome and it’s always a pleasure to help. 26″ is too big for a kid’s bike. I wrote a cycling article about Hopefully this will answer your question. Feel free to post anytime 🙂

  • satish s says:

    Very useful

  • Patricia Carter says:


    Hello, due to the bike shortage I had to order a size I didn’t have a chance to personally try. I am 5 ft 8 1/2. I still need to measure my inseam but I know my legs are longer than my torso.

    I ordered the medium which is a 50 cm frame. Does this seem too small? Is it because the frame is lower?

    • Jeff Balton says:

      Hi Patricia,
      Actually, you are still within the recommended range. Try to make adjustments with the saddle height and angle and you should be good to go.

  • Amy says:

    Hi there! My 15 year old, 6’4″ (tall and thin, 34″ inseam) son started mtb racing this fall, and we are having a hard time finding a bike that he can lean around corners, but also that gives him the best power per push for his leg length. Any thoughts? Thank you immensely!

    • Jeff Balton says:

      Hi Amy,

      A bike with 29″ wheels will indeed be hard to maneuver compared to a 27.5″. You also need to ensure that he has the right frame size of 19″ + which is under the XXL category.

  • Glen Craig says:

    Hi Jeff,

    I’ve been looking everywhere for a bike that fits me with a 36″ inside leg at 6ft 7 tall. I’m looking for a road bike and have been looking everywhere. This will be my fist road bike and looking around for roughly £1000 give or take £200. Is there any bike brands you suggest looking at that I may not have seen yet? Its so hard to find one my size!

    • Jeff Balton says:

      Hi Glen,
      I agree it is challenging to find a bike for someone your height. Your range is within the 61-62-63 cm.These are under the XXL category. In terms of bikes under the range you are looking for, you might be in luck. Check out my article about Best Road Bikes Under $1,000. I am sure these are brands you already heard about 😉

  • Elisa says:

    Help! I’m confused 😕 I’m 5’7″ and inseam 30″, riding a hybrid Trek 20″ frame. According to the charts I should use a 16 or 17″ frame but according to method 2, 30×0.685= a 20.5 frame. What am I getting wrong? I keep wondering what I should do because I don’t feel the bike is too big when I pedal, the only moment I feel it’s a bit large is when I place my foot on the ground while riding and I’m trying to understand why at 3 inches above my size I do not feel discomfort riding. I have a positive ape index. Your insight would be very helpful. Thanks.

    • Jeff Balton says:

      Hi Elisa,
      We do have unique body measurements. What these charts do it to categorize you based on the general standard population, in terms of what are the recommended sizes that fits mostly people your height. But then again, these cannot address our body size differences. There are other factors that play here, including seat port height, stem length etc. Although 16-17″ are still your recommended sizes, it is better to have a proper bike fit. Feel free to send me a follow-up question. Cheers!

  • Karen Davis says:

    Hi Jeff can you please tell me what size bike should I get, I haven’t rode a bike in years. I found a bike cruiser 26 inch and I have fallen off several times, I’m 4’11 @156 pounds and I’m in my 50 I’m short Lol but I don’t want a child like bike, I bike ride with my husband through the city and on some trails, what size and kind would you recommend. . Thanks🚴

    • Jeff Balton says:

      Hi Karen,
      You don’t need a child bike. You only need to get a frame size around 14″ and that’s under XS. Good luck!

  • Sarah J says:

    Hi Jeff. Please help me. I want to buy a bike. I didn’t have one since childhood so I want something simple and affordable now to get me started. I’m female 5”5 and 140lbs. What would you recommend? Thank you

    • Jeff Balton says:

      Hi Sarah,
      It depends on your preferred riding style. Do you want to ride in a more upright and relaxed position? If that’s so then you need a hybrid bike. If you are into road riding then a road bike is the best one for you. If going off road is what suits you best, then go for a mountain bike. Do let me know which one you like to do best. As for the frame size, choose something that’s around 5 – 16 inches.

  • Sarah J says:

    Hi Jeff. Please help me. I want to buy a bike. I didn’t have one since childhood so I want something simple and affordable now to get me started. I’m female 5”5 and 140lbs. What would you recommend? Thank you so much

    • Jeff Balton says:

      Hi Sarah,
      Since this is your first bike, a more upright riding is the way to start. Here’s a bike that might interest you.You can start with a Medium size bike.

  • Nishanth says:

    In my town there are so many uphills,slopes and turns. I am confused which cycle is suitable for these roads and iam 6 feet tall ,19 year old. Will 21 size cycle suits me?

    • Jeff Balton says:

      Hi Nishanth,
      Interesting question. I was thinking if I should recommend an MTB, a road bike or a hybrid bike. They are all great bikes for your type of riding. However, if you are not into off road, then I suggest you get a road bike . Road bikes are great for climbing because they weight less. I also suggest you get an XL frame size: somewhere between 58-59-cm.

  • Sam Rodrigo says:

    Hi. Thanks for all the advice. I’m looking to get a gravel / multi bike. I am 5 foot 5 “ with inseam 29/30. So website indicate I should get a bike frame of 52 and then it’s S. But others says XS. There is a Specialized bike at a store with 52 and an online model with XS. Would both be ok? What would you recommend? I was looking at a Canyon bike – and the sales rep said I would be 2XS based on my height. So assume diff manufacturers have diff starting sizes? Now I’m more confused!!


    • Jeff Balton says:

      Hi Sam,
      The thing about labels like Medium, Large, XL etc is that they overlap. I suggest you go for actual measurement. The right bike for you falls under small, specifically a frame size between 51-52-53 cm. Ask for the actual measurement so you’ll get the right bike for you.

  • Nazar says:

    Hi Jeff, I just got a new bike. It’s 2021 Trek Emonda SL5. The recommended frame size is 50cm. I’m curious if it’s the right size for me. I’m 5’7” height and just under 29” of inseam height.

    • Jeff Balton says:

      Hi Nazar,
      You are 5’7, therefore your road bike should be under the Medium category. 54-55 cm are the recommended sizes for you. 50cm is small for you.

  • Drew M says:

    My height is around 5’7 1/2…I think my legs are shorter than usual lol 😂 What size road bike should I get? I was thinking 54 cm? Is that about right ? I’ve seen conflicting information, some going as low as 50 cm and some as 57cm.

    What to do ?


  • Franck says:

    I have two bike and sometimes ride my partner bike to .
    I have road bike xs which is to small and I have mountain bike that is small. My inside leg is 29 and half inches I have order a new bike size small with 25″ wheels will I be ok with small bike

    • Jeff Balton says:

      Hi Franck,
      Do you feel comfortable with the bike? Categories like XS and S do overlap. It is more accurate to base the measurements on your actual height like how tall your are in inches/cm then we can conclude if you are riding a bike that’ too small or too big for you.

  • Ryan McFarland says:

    My wife is 5’9″…what size roadbike should I get her?

    • Jeff Balton says:

      Hi Ryan,

      Give her a road bike that is from 55 to 57cm. That’s somewhere between medium to large.

  • Jean McKinney says:

    This is really useful for helping people navigate the many bike options out there. So here’s my question – how does tire size factor into this? By the charts I would need a 16-17″ frame (I’m 5’8″) but does that call for a particular tire size too?

    • Jeff Balton says:

      Hi Jean,
      They do. For example smaller riders will feel more comfortable with 26″ tires compared to navigating using 29″ tires. Smaller: Nimble, fast acceleration and lightweight. Large: Slow acceleration, hard to control, but smoother on gnarly rides.

  • Vera says:

    Hi Jeff!! I am 5’4” female with inseam of 29”. Would a medium size frame with 29” tires be way too big for me? And what size would you suggest? I’m looking for a mountain bike for paved and dirt trails. Also what are the long term risks when buying a bike that’s too big?

    • Jeff Balton says:

      Hi Vera,
      Although I would pay more attention to frame sizes that wheel sizes(your’s should be around 15” / 16″ frame sizes), Wheel size can have significant impact on riding. A 29″ might be considered big for your size but I have seen people your height riding them. You need to test the bike first in order to decide if these are the sizes you should go for. Bigger wheels can mean comfortable ride on rough trails. But they are heavier and they take a little longer to accelerate. A 27.5 is a better compromise. The risk of buying a bike that’s too big is getting lower back pain and other discomforts.

  • JP Biking says:

    Hello Jeff. First time to own a Mountain Bike.
    More of a tweener. 5’6-5’7. Shop has advised me i can do both S or M. But they only have stocks for S with the color I like. The M with the color I dont like. Can I really be S? What are the pros and cons? Thank you so much!

    • Jeff Balton says:

      Hi JP,
      Good question there! The thing about categories such as XS S M L XL etc is that they overlap. I suggest you base the measurement on inches. For example, your recommended frame sizes are : 16” / 17″. These fall under medium category on our chart.Would you mind asking if they have frame sizes such as the ones I posted? The pros and cons aren’t that great but they will impact the quality of your ride. That is why it is best to find the right frame size(s) that fits you best.

  • Yusuf Matcheswala says:

    Hello Jeff, Thanks for the article. Great sizing tips!! When you say frame size is this the same measurement as in the graphic for method 1 from the crank to the seat post?

    • Jeff Balton says:

      Hi Yusuf,

      Yes they all follow the same standard method. The only variance is using the cm and inches. You will also notice that the standards vary(a bit) depending on the type of the bike. This has something to do with overall geometry.

  • Vicky says:

    Hi Jeff.
    I’m 43 year of age 5’10.5” with an inseam of 34.5”.I want bicycle for comfortable ride poster because of back problem.
    I have sorted out simple roadster bicycle(100 year old design) having tyre 28″*1.5″ in spite they are heavy wt . Now they have two frame size 22″ and 24″.
    In 22″ it is possible to touch ground in sitting on saddle which is useful during sudden brake.
    but in 24 inch give better riding quality .Can you suggest which one to choose. Thank you

    • Jeff Balton says:

      Hi Vicky,
      You need a frame size that’s 17″. This is under the large category. Smaller or bigger than this will give you back problems. I posted an article about chwinn Discover Women Hybrid Bike which is an example of a bike that is suited for your riding position. Let me know if you have a follow-up question. A 24 frame is way too bog!

    • Vicky says:

      Hi Jeff,
      Thank for reply.
      What should be height of saddle top from bottom bracket. I already have bike with 17″ frame

    • Jeff Balton says:

      Hi Vicky,
      The answer really depends on your level of comfort. There are people who prefer a saddle height with a bend or there are those who like full leg extension. I suggest you check out these helpful tips and see which one you should follow.

  • Jennifer says:

    Hi Jeff. I am looking to purchase a Trek Marlin 5 MTB. I am on the cusp for height. I am 5’4, inseam 29, with a positive ape index. Do I go small which is 15.5 frame with 27.5 tyres, or medium with 17.5 frame and 29ers? Thanks in advance!

    • Jeff Balton says:

      Hi Jennifer,
      You fall under the Small category. You should be OK with frame sizes 15” / 16″. 27.5 is good enough for you.

  • Ed says:

    Hi, I’m looking for a tricycle that would be a good fit, for a taller man (6’9inch). It has become really hard to find a bike that’s gonna work for me. I currently have a disability that limits me to ridding on a tricycle to help me with stability while riding.
    Thanks for your help, Ed

  • Rey says:

    Hi Jeff I’m new on bicycle parts and was planning to buy a MTB for urban riding but I’m not sure what frame size or wheel size to get that fits according to my height. I’m 5’6″ with leg inseam of 27.

    And which is better steel or aluminum frames? . Thank you.

  • Myles says:

    Hey Jeff,
    I am 180cm tall, yet still ride a medium frame. Does that work/or what size frame should I purchase.

    • Jeff Balton says:

      Hi Myles,
      You should get a frame on the Large category (17″ / 18″). But be sure that you are doing it for comfort reasons. We do have different body structures so what works for another person might not work for you. The chart is meant to set the ‘acceptable’ standard based on body size but we understand there are rare exceptions.