Trek Marlin 5 Gen 2 Radioactive Red

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

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 hydraulic disc, short reach lever
*Brake	Size: M , ML , L , XL , XXL Tektro HD-M275 hydraulic disc