Review Of Trek Marlin 7 - Is It Worth The Money?

Review Of Trek Marlin 7: A Good Choice for Trail Enthusiasts?

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Trek Marlin 7 is the flagship model from the Marlin lineup. This is a race-ready trail bike that doubles as a daily commuter or a leisure two-wheeler. Thanks to its attractive price, it will find its way into the hands of a variety of adventure-hungry riders.

Marlin 7 Gen 2 is the most expensive model from the beginner-friendly Trek Marlin series. However, its $1,030 price is more than justified.

This is an affordable cross-country bike with race-ready geometry and a much better RockShox fork compared to other cheaper Marlin series models.

If you’re more serious about mountain biking and you want the key to the door of real trail riding, then you should read the rest of our detailed Trek Marlin 7 review. You’re guaranteed to like it.


Trek Marlin 7 Quick Overview

The secret to Marlin 7’s success on the entry-level MTB market is the fact that it combines race-ready elements to budget components to offer a versatile package that fits diametrically different needs, such as trail riding, leisure riding, and commuting.

Key Specifications:

  • Frame: Alpha Silver Aluminum
  • Fork: RockShox Judy, 100 mm (80mm for XS)
  • Cassette: Shimano Deore M4100, 10 speed
  • Rear Derailleur: Shimano Deore M5120
  • Brakes: Shimano MT200 hydraulic disc brakes
  • Rims: Bontrager Connection, double-wall
  • Tire Size: 27.5″/29″ x 2.20″
  • Weight: 13.47 kg / 29.7 lbs


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Trek Marlin 7 Main Features

Trek has obviously put a lot of effort into making Marlin 7 Gen 2 a gateway model to some of their higher-priced and higher-specked lineups such as Roscoe or Supercaliber.

Marlin 7 has features from both the entry-level and the mid-range world. It has excellent competition-worthy suspension, brakes, and frame, coupled with a low-level Shimano groupset and a heavier-than-ideal wheelset.

With a few smart upgrades, it can certainly become a bike that can lead you to a cross-country race podium!

Trek Marlin 7


Light and Efficient 1×10 Drivetrain

One of the high points of the Trek Malin 7 bike is its light and efficient 1×10 drivetrain. It’s built with an 11-46T cassette.

This means that it has an excellent range of gears.

Marlin 7's drivetrain


High-Performing 100mm RockShox Fork

The RockShox Judy fork on Marlin 7 is a big improvement compared to the SR Suntour forks found on other lower-priced Marlin models.

It puts 100mm of travel under your hands but also equips you with a preload function and a Turnkey lockout. Therefore, you can lock it with the flip of a switch even when you’re riding.

The coil spring might make the fork feel a bit inefficient if you are very short and light, but if you have an average weight, you’ll be happy with it.

This fork is ready for fast descents, rocky terrain, and more technical trails.

Trek Marlin offers 100mm of travel


Budget-Friendly Components

Shimano Deore components are an upgrade from the previous combination of Shimano Altus and Shimano Acera.

Deore is part of the Shimano lineup, the groupset is the cheapest group marketed towards real mountain bikers.

Deore is well-built and reliable, it even shares some features with more expensive groupsets.


Race-Ready Frame Geometry

By far the most important part of any bike is its frame. Trek Marlin 7 can be proud of its Alpha Silver Aluminum frame as its light, compliant, and nimble on the trails.

The race-inspired geometry makes this bike good both at tight and demanding singletracks, as well as at straight downhills attacked at high speeds.

Its 69.3-69.5-degree head tube angle combined with a 73.5-71.9-degree seat tube angle puts you in a good position to have maximum control.

Marlin 7 head tube


Reliable Hydraulic Disc Brakes

The Shimano MT200 hydraulic brakes are a phenomenal mid-range choice. They are capable of providing you will all the braking power you need when attacking high-speed descents.

Combined with the aluminum Bontrager Connection double-wall wheels and knobby Bontrager XR2 Comp tires, you’ll get maximum confidence in bends and in wet conditions.

These wheels are not tubeless-ready. Still, they can be easily converted to a tubeless setup which would give Marlin 7 even better trail properties.


Does Trek Marlin 7 Fit Your Needs?

To figure out whether or not Marlin 7 is the right bike for you, you first need to define your needs. If trail riding is your hobby or you believe that it might become that, then you should definitely buy Marlin 7. This is a race-ready bike that you can enter amateur competitions with or just have fun with your friends.

But, Marlin 7 is still not too trail-specific that it cannot accomplish other tasks as well. If you can only afford one bike and you want to be able to commute on it as well, this bike can do that.

A few miles on paved roads to get to work will feel like second nature. Best of all, on the way back home, you can hit some trails and end your day the right way.


Geometry & Sizing

Sizing table
Frame size number Frame size letter Wheel size A — Seat tube B — Seat tube angle Effective seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
13.5 XS 27.5″ 34.3 73.5° 73.5° 9.0 69.3° 54.4 29.2 5.8 43.8 4.2 8.8 104.9 65.8 37.6 56.5
15.5 S 27.5″ 36.8 73.5° 73.5° 9.0 69.3° 55.5 30.2 4.8 43.8 4.2 8.8 106.6 68.6 38.5 57.4
17.5 M 29″ 41.9 71.9° 73.0° 9.0 69.5° 60.2 31 5.8 43.8 4.2 9.3 110.0 74.8 41.8 60.2
18.5 ML 29″ 44.4 71.9° 73.0° 9.0 69.5° 61.8 31 5.8 43.8 4.2 9.3 111.6 75.8 43.4 60.2
19.5 L 29″ 47.0 71.9° 73.0° 10.0 69.5° 63.8 31 5.8 43.8 4.2 9.3 113.7 75.7 45.1 61.1
21.5 XL 29″ 52.1 71.9° 73.0° 12.0 69.5° 65.9 31 5.8 43.8 4.2 9.3 115.9 76.9 46.6 63.0
23.0 XXL 29″ 55.9 71.9° 73.0° 12.0 69.5° 67.3 31.1 5.8 43.8 4.2 9.3 117.3 80.4 48.0 63.0


Other Marlin Models

Trek Marlin Series Bikes


Verdict: Good Value or Not?

suggestedTrek Marlin 7 costs $1,030 and is worth every cent if you’re looking for a real trail bike that’s ready to rumble.

Excellent geometry ensures agile steering and the coil-spring RockShox fork provides impressive shock absorption even on rocky surfaces.

The entry-level components keep the price in check but can be upgraded if need be. However, casual riders and first-timers on the trails can enjoy the original setup for years and miles to come.

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Trek Marlin 7













  • Efficient RockShox suspension
  • Race-inspired geometry
  • Strong Shimano hydraulic brakes
  • Wide-range 1x10 drivetrain
  • Three attractive colors


  • Budget groupsets

42 thoughts on “Review Of Trek Marlin 7: A Good Choice for Trail Enthusiasts?


    1. Hey Miguel, in my opinion, the stock pedals are perfectly fine. The only reason why you might want to change them is if you want to switch to clipless shoes and pedals. Otherwise, stick with the stock ones and enjoy your trip!

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