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You're new to the trail and you’re looking for a real mountain bike that doubles as a commuter – and you want it all at an exceptional value.
The tech you get
A lightweight aluminium frame with internal routing to protect your cables and add to the bike's sleek look, an upgraded 9-speed Shimano CUES drivetrain, a wide range of gearing so you always have the right gear for your terrain, powerful hydraulic disc brakes and a terrain-smoothing suspension fork with a lockout.
The final word
The Marlin 5 is a great ride for all your adventures. It's also versatile and a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorise and haul a load.
Why you'll love it
The Marlin Gen 3 gives you serious trail capability, with big tyre clearance and slack, confidence-boosting geometry that keeps you stable from singletrack to city
Mudguard mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter
Its ThruSkew system is safer, simpler and stronger, plus it makes removing the rear wheel easy for flat fixes in a hurry
Internal routing makes it easy to add a dropper post that lets you lower your saddle on the fly for more confident descending
Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount
Time to get out the repair stand for some maintenance? Find a detailed breakdown of your bike with part numbers, torque values and platform-specific tech instructions below.
Whether you're after a lightweight singletrack shredder or sticking to the tarmac on your commute to work, the Marlin is compatible with all the gear you need to have a great ride.
Smaller frames have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frame sizes have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.
Fit for every rider
Marlin comes in seven frame sizes to suit riders of any height, and Smart Wheel Size ensures you’re on the fastest wheel that fits. The smallest sizes even come with short-reach brake levers and narrower handlebars that give smaller riders better comfort and control.
High tech, high value
Marlin looks and feels great. It’s packed with features usually found only on more expensive bikes, like a stylish frame with internal shift cable and brake hose routing, which can help your cables last longer by protecting them from the elements.
Shimano CUES
Inspired by rider demand for trouble-free drivetrain longevity and performance, Shimano CUES offers a new foundation for versatility and durability across a range of both electric and standard bikes. CUES features Shimano’s new LINKGLIDE drivetrain technology for significantly increased life on wear items like chain, cassette and chainrings.
Shimano LINKGLIDE
LINKGLIDE technology has been specifically engineered for incredible durability while still delivering smooth and decisive shifting – along with a great pedalling experience. Available exclusively on Shimano CUES drivetrains.
Upgrade your pedals and love your bike more
Pedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility.
Chainstay mounts make it easy to install a rear kickstand that stays out of your way and supports bikes of all sizes. No more laying or leaning.
Suspension lockout
Locked suspension means your fork remains inactive, increasing pedalling efficiency. Perfect for extended road sections where efficiency is more important than bump absorption.
Rack mounts
Going for a long ride? Rack mounts make carrying accessories a breeze.
Blendr stem
Bontrager stem technology lets you clip your gear directly to the stem for clean looks and maximum user friendliness.
Max brake rotor sizes - Frame: 180mm (XXS: 160mm), Fork: see fork manufacturer
Weight
M - 15.10 kg / 33.29 lbs (with tubes)
Weight limit
This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. The prices shown are the manufacturer's suggested retail prices.
Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
How tall are you?
To measure your height, stand up straight, barefoot, with your back, heels, shoulders and head all touching a wall. While looking straight ahead, place a book or straight edge on your head and slowly push it against the wall. Your straight edge should be parallel with the floor. Mark the spot where the bottom of the book is touching the wall. The distance from the marked spot to the floor is your height.
What is your inside leg?
How to measure: Stand barefoot with your back straight and against a wall. Tuck a ruler or something that extends to the floor between your legs. Using both hands, and keeping it level, pull the ruler up into your crotch as if you were sitting on the saddle. Measure the distance from the top edge of the ruler to the ground to find your inside leg measurement. Your inside leg is very important to your final bike size so please measure carefully.
size-table
Size
Rider Height
Inseam
2XS
135 - 145 cm
4'5" - 4'9"
64 - 68 cm
25" - 27"
XS
145 - 155 cm
4'9" - 5'1"
69 - 73 cm
27" - 29"
S
155 - 165 cm
5'1" - 5'5"
74 - 78 cm
29" - 31"
M
165 - 176 cm
5'5" - 5'9"
79 - 83 cm
31" - 33"
ML
173 - 180 cm
5'8" - 5'11"
81 - 86 cm
32" - 34"
L
177 - 188 cm
5'10" - 6'2"
84 - 89 cm
33" - 35"
XL
188 - 195 cm
6'2" - 6'5"
89 - 91 cm
35" - 36"
2XL
195 - 203 cm
6'5" - 6'8"
91 - 97 cm
36" - 38"
All measurements provided in cm unless otherwise stated.
Trek Cable Management, foam tube to cover housing and reduce noise, 450mm length, 9mm OD, 6mm ID, fits one line of housing only, cut 600mm replacement foam tube to fit
