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Trek Marlin Buyer's Guide

Trek Marlin is a trail-worthy mountain bike that's tough enough for off-road adventures and versatile enough to impress dedicated commuters.  Read our guide to understand the ins-and-outs of this MTB and why it might be the best bang for your buck.

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Trek Marlin Overview

Marlin mountain bike

Who is a Trek Marlin for?

The Trek Marlin is durable, easy to outfit with gear and accessories, and at home on any type of terrain making it the ideal mountain bike for any cyclist wanting a versatile machine.

Whether you're looking for your first bike or are an experienced XC cyclist looking for a 29er to use on the daily, the Marlin is a great option.

Trek mountain bike

Why you might love a Trek Marlin

The Marlin is not only a high-quality and versatile mountain bike, it's also super affordable!  It's built with the best component spec per price point that ensures you won't outpace the bike as your cycling skills advance and your adventures get more technical.

Experience the Trek Marlin

Trek Marlin features

Check out some eye-catching features on the Marlin that promise to impress any bike enthusiast:

Marlin smart wheel sizing

Smart wheel sizing

Ride the fastest wheelset that fits. 26" wheels stay alive on the XXS size, while the XS and S frames roll with 27.5" wheels.  Medium thru XXL frames are equipped with the fastest 29" wheels.

Bike mount versatility

You'll appreciate the ability to accessorize with an array of features including a direct-mount for kickstands and rack/cargo mounts.  Bike packers and commuters alike can geek out over the mounting options.

Size range

The Marlin comes in seven frame sizes (XXS to XXL) to comfortably fit riders of practically any height! For the smallest sizes, they've included unique fit features like a curved top tube for easier dismounting.

Race-inspired geometry

Trek engineered the Marlin to have the look and feel of an XC-racing bike, but they didn't forget to prioritize comfort for beginner riders.

Internal cable routing

Internal cable routing on the Marlin means you don't have to fret about dirt, grime, and inclement weather contaminating your cables.  Plus, it looks awesome!

Trek Marlin Mountain Bike Models

There are a five different levels of Marlin mountain bikes designed with a wide range of riders in mind. 

Find the one that fits you and your needs below:

Trek Marlin 4

Trek Marlin 4

The Marlin 4 is Trek's gateway to XC trail riding. It is the most affordable of the options and is versatile enough to get out and explore or be a daily commuter.

  • Frame: Alpha Silver Aluminum
  • Fork: SR Suntour XCE 28
  • Drivetrain: Shimano Tourney TY300 3x7
  • Brakes: Tektro MD-M280 Mechanical Disc

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Trek Marlin 5

Trek Marlin 5


Upgrade:  Crisper shifting, better suspension, and hydraulic disc brakes. Marlin 5 improves light trail riding but still doubles as a versatile commuter. 

  • Frame: Alpha Silver Aluminum
  • Fork: SR Suntour XCM 30
  • Drivetrain: Shimano Altus 2x8
  • Brakes: Tektro HD-M276 Hydraulic Disc
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Trek Marlin 6

Trek Marlin 6


Upgrade:  Further improve shifting with a wide-range 1x10 drivetrain and a suspension fork with a hydraulic lockout.

  • Frame: Alpha Silver Aluminum
  • Fork: SR Suntour XCT 30
  • Drivetrain: Shimano Deore 1x10
  • Brakes: Tektro HD-M276 Hydraulic Disc
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Trek Marlin 7

Trek Marlin 7


Upgrade: Higher quality drivetrain components, RockShox fork, and powerful Shimano hydraulic disc brakes. The Marlin 7 approaches a race-worthy XC MTB that's perfect for aspiring new trail riders.

  • Frame: Alpha Silver Aluminum
  • Fork: RockShox Judy with Turnkey lockout
  • Drivetrain: Shimano Deore 1x10
  • Brakes: Shimano MT200 Hydraulic Disc
 Shop Marlin 7