Trek Marlin 5 (Gen 2) Hardtail Mountain Bike 2023

Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. A suspension fork, 2x8 drivetrain, and mounts for a rack and kickstand make it an ideal choice for new trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike.

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.

A lightweight aluminum frame with internal routing to protect your cables and add to the bike's sleek look, 2x8 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.

Marlin 5 is a great ride for all your adventures. But it's also versatile, and Marlin 5 is a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorize and haul a load.

It's a real mountain bike that's also perfectly suited to daily commutes, rides around campus, or just getting from A to B on any surface
Smaller frame sizes (XXS, XS, and S) have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently
Marlin models in XXS through S frame sizes have a curved top tube and a lower standover height that makes it easier for smaller riders to mount and dismount
Rack and kickstand mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter
Like every model in the Marlin family, it's backed by Trek's lifetime warranty

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, colors, and materials.

*spec applies to all sizes unless otherwise noted

Frameset

Frame	Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR
*Fork	Size: XXS SR Suntour XCM 30, coil spring, lockout, preload, 100 mm QR, 100 mm 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, 100 mm QR, 100 mm travel
	Size: XS SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel
	Size: S SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel

Wheels

Hub front	Formula DC-20, alloy, 6-bolt, 5x100 mm QR
Hub rear	Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
*Rim	Size: XXS Bontrager Connection, alloy, double-wall, 32-hole, 20 mm width, Schrader valve
*Rim	Size: XS , S , M , ML , L , XL , XXL Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve
Spokes	14 g stainless steel
*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"

Drivetrain

*Shifter	Size: XXS , XS , S , M , ML , L , XL , XXL Shimano Altus M315, 8 speed
*Shifter	Size: XXS , XS , S , M , ML , L , XL , XXL Shimano Altus 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, 160 mm length
	Size: XS , S , M Shimano M315, 36/22, 170mm length
	Size: ML , L , XL , XXL Shimano M315, 36/22, 175mm length
Bottom bracket	VP BC73, 73mm, threaded cartridge
Cassette	Shimano HG200, 12-32, 8 speed
Chain	KMC Z8.3, 8 speed
Pedal	VP-536 nylon platform

Components

Saddle	Bontrager Arvada, steel rails, 138 mm width
*Seatpost	Size: XXS Bontrager alloy, 31.6 mm, 12 mm offset, 300 mm 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
*Handlebar	Size: S , M , ML , L , XL , XXL Bontrager alloy, 31.8mm, 5mm rise, 720mm width
Grips	Bontrager XR Endurance Comp, lock-on
*Stem	Size: XXS Bontrager alloy, 31.8 mm, Blendr compatible, 7 degree, 35 mm length
	Size: XS Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length
	Size: S Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length
	Size: M Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length
	Size: ML , L Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 80mm length
	Size: XL , XXL Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 90mm length
Headset	Semi-integrated, 1-1/8''
*Brake	Size: XXS , XS , S Tektro HD-M276/ Radius/ Power/ Promax hydraulic disc, short reach lever
*Brake	Size: M , ML , L , XL , XXL Tektro HD-M275/ Radius/ Power/ Promax hydraulic disc