Marlin 5 Gen 2 - Trek Bikes

Overview

"Unlike some bikes on the cheap end of the spectrum that cater to the recreational user, this one is aimed firmly at entry-level riders who want a bike that's affordable yet capable of riding and racing hard."

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Snag Marlin Gen 3 for the trail-taming geometry and features or opt for Marlin Gen 2 for a classic XC ride at a more pocket-friendly price.

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Whether you're after a lightweight singletrack shredder or sticking to the pavement on your commute to work, Marlin is compatible with all the gear you need to have a great ride.

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Do this quick pre-ride safety check before you hit the trails.

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Features

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.

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.

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.

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.

See the guide

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.

Locked suspension means your fork remains inactive, increasing pedaling efficiency. Perfect for extended road sections where efficiency is more important than bump absorption.

Going for a long ride? Rack mounts make carrying accessories a breeze.

Bontrager stem technology lets you clip your gear directly to the stem for clean looks, maximum user friendliness.

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We route shift and brake cables through the frame to keep things clean and simple. And it looks great, too.

Specs

*Frame	Size: XXS , XS , S Alpha Silver Aluminum, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR
Size: M , ML , L , XL , XXL Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR
*Fork	Size: XXS SR Suntour XCM 30, coil spring, preload, hydraulic lockout, 42mm offset for 26'' wheel, 100mm QR, 100mm travel
Size: XS SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42mm offset for 27.5'' wheel, 100mm QR, 80mm travel
Size: S SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel
Size: M , ML , L , XL , XXL SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 46mm offset for 29'' wheel, 100mm QR, 100mm travel
Max compatible fork travel	100mm (XS & S: 490mm axle-to-crown, M & up: 509mm axle-to-crown)

Hub front	Formula DC-20, alloy, 6-bolt, 5x100mm QR
Hub rear	Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR
Skewer rear	152x5mm QR
Rim	Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve
Spokes	14g stainless steel, black
*Tire	Size: XXS Bontrager XR2 Comp, wire bead, 30 tpi, 26x2.20''
Size: XS , S Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20''
Size: M , ML , L , XL , XXL Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20''
Max tire size	Frame: 29x2.20" (XS & S: 27.5x2.40"), Fork: See manufacturer

*Shifter	Size: XXS , XS , S , M , ML , L , XL , XXL Shimano M315, 2 speed
Size: XXS , XS , S , M , ML , L , XL , XXL Shimano M315, 8 speed
Front derailleur	Shimano Altus M315, 34.9mm clamp, top swing, dual pull
Rear derailleur	Shimano Altus M310
*Crank	Size: XXS Prowheel TM-CY10, 36/22, 160mm length
Size: XS , S , M Shimano M315, 36/22, 170mm length
Size: ML , L , XL , XXL Shimano M315, 36/22, 175mm length
Bottom bracket	Sealed cartridge, 73mm
Cassette	Shimano HG200, 12-32, 8 speed
Chain	KMC Z8.3, 8 speed
Max chainring size	1x: See FAQ, 2x: 36T, 3x: 42T

Saddle	Bontrager Arvada, steel rails, 138mm width
*Seatpost	Size: XXS Bontrager alloy, 31.6mm, 12mm offset, 300mm length
Size: XS , S , M Bontrager alloy, 31.6mm, 12mm offset, 330mm length
Size: ML , L , XL , XXL Bontrager alloy, 31.6mm, 12mm offset, 400mm length
*Handlebar	Size: XXS , XS Bontrager alloy, 31.8mm, 5mm rise, 690mm width
Size: S , M , ML , L , XL , XXL Bontrager alloy, 31.8mm, 5mm rise, 720mm width
*Stem	Size: XXS Bontrager Comp, 31.8mm, 7 degree, 35mm length
Size: XS Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length
Size: S Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length
Size: M Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 70mm length
Size: ML , L Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 80mm length
Size: XL , XXL Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 90mm length
Headset	Semi-integrated, 1-1/8''
Brake	Tektro HD-M275 hydraulic disc, 180mm rotor
Brake Set	Tektro HD-M275 hydraulic disc, 160mm rotor

Weight	M - 13.97 kg / 30.81 lbs
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

Sizing

How tall are you?

To measure your height, stand straight up, 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 inseam?

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 inseam measurement. Your inseam is very important to your final bike size so please measure carefully.

Geometry

Service

Reviews

We’ll make this a great experience

Delivered the way you want

30-day Unconditional Guarantee

"Look fast, feel fast, go fast."

More options

Which generation is right for you?

Load up. Or not.

5 things to do before every mountain bike ride

Will my bike have a curved top tube?

Fit for every rider

High tech, high value

Upgrade your pedals and love your bike more

Rear kickstand mount

Suspension lockout

Rack mounts

Blendr stem

Internal cable routing

How tall are you?

What is your inseam?

We’ll make this a great experience

Delivered the way you want

30-day Unconditional Guarantee

"Look fast, feel fast, go fast."

More options

Which generation is right for you?

Load up. Or not.

5 things to do before every mountain bike ride

Product features

Will my bike have a curved top tube?

Fit for every rider

High tech, high value

Upgrade your pedals and love your bike more

Rear kickstand mount

Suspension lockout

Rack mounts

Blendr stem

Internal cable routing

How tall are you?

What is your inseam?