Trek Marlin 4 Gen 2|BLACK|S|M|ML|L|XL|XXL|27.5″

These bikes are shipped unassembled. Bikes should be assembled by an authorized bicycle retailer.

Marlin 4 is the perfect gateway to trail riding. It’s ideal for new riders who want a mountain bike with knobby tires that can double as a rugged commuter. Disc brakes, front suspension, 21 speeds, and mounts for a rack and fenders make this a great bike for new trail riders and campus commuters alike.

It’s right for you if…

You want an introductory mountain bike at an incredible price, but also want a commuter that’s rugged enough to hop curbs on the way to class.

The tech you get

A lightweight aluminum frame with internal routing to protect your cables and add to the bike’s sleek look, 21 speeds, a wide range of gearing so you always have the right gear for your terrain, powerful mechanical disc brakes, and a suspension fork that takes the edge off bumps and rough terrain.

The final word

Marlin is made for any adventure. The rack and fender mounts make it a great choice for commuters who want to get a little rad on the way to class or the grocery store.

Why you’ll love it

1. 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
2. Rack and fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter
3. Smaller frame sizes (XS and S) have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently
4. Marlin models in XS and S frame sizes have a curved top tube and a lower standover height that makes it easier for smaller riders to mount and dismount
5. Like every model in the Marlin family, it’s backed by Trek’s lifetime warranty

Will my bike have a curved top tube?

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 dont 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 youre 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. Its 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.

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.

*Frame Size:XS , S , M , ML , L , XL , XXL
Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135×5 mm QR Size:XS , S
Alpha Silver Aluminum, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR Size:M
Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR *Fork Size:XS
SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5” wheel, 100mm QR, 80mm travel Size:XS
SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5″ wheel, 100mm QR, 80mm travel Size:S
SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5” wheel, 100mm QR, 100mm travel Size:S
SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5″ wheel, 100mm QR, 100mm travel Size:M , ML , L , XL , XXL
SR Suntour XCE 28, coil spring, preload, 46mm offset for 29” wheel, 100mm QR, 100mm travel Size:M , ML , L , XL , XXL
SR Suntour XCE 28, coil spring, preload, 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)

Wheels

Hub front Formula DC-20, alloy, 6-bolt, 5×100 mm QR Hub rear Formula DC-31, alloy, 6-bolt, 6/7/8-speed freewheel, 135×5 mm QR Skewer rear 152x5mm QR *Rim Size:XS , S
Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve, Black Size:XS , S , M , ML , L , XL , XXL
Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve Size:M , ML , L , XL , XXL
Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve *Tire Size:XS , S
Bontrager XR2 Comp, wire bead, 30 tpi, 27.5×2.20″ Size:M , ML , L , XL , XXL
Bontrager XR2 Comp, wire bead, 30 tpi, 29×2.20″ Size:M , ML , L , XL , XXL
Bontrager XR2 Comp, wire bead, 30 tpi, 29×2.00″ Max tire size Frame: 29×2.20″ (XS & S: 27.5×2.40″), Fork: See manufacturer

Drivetrain

*Shifter Size:XS , S , M , ML , L , XL , XXL
Shimano Altus EF500, 7 speed Size:XS , S , M , ML , L , XL , XXL
Shimano Altus EF500, 3 speed Front derailleur Shimano Tourney TY300, 34.9mm clamp, down swing, down pull Rear derailleur Shimano Tourney TY300 *Crank Size:XS , S , M
Shimano Tourney TY301, 42/34/24, 170mm length Size:ML , L , XL , XXL
Shimano Tourney TY301, 42/34/24, 175mm length *Bottom bracket Size:XS , S , M , ML , L , XL , XXL
VP BC73, 73mm, threaded cartridge Size:XS , S , M , ML , L , XL , XXL
Sealed cartridge, 73mm Cassette Shimano TZ500, 14-28, 7 speed Chain KMC Z7, 7 speed Pedal VP-536 nylon platform Max chainring size 1x/2x: 34T, 3x: 42T

Components

Saddle Bontrager Arvada, steel rails, 138 mm width *Seatpost Size:XS , S
Bontrager alloy, 31.6mm, 12mm offset, 330mm length Size:M
Bontrager alloy, 31.6mm, 12mm offset, 360mm length Size:ML , L , XL , XXL
Bontrager alloy, 31.6mm, 12mm offset, 400mm length *Handlebar Size:XS , S
Bontrager alloy, 31.8mm, 5mm rise, 690mm width Size:M , ML , L , XL , XXL
Bontrager alloy, 31.8mm, 5mm rise, 720mm width Grips Bontrager XR Endurance Comp, lock-on *Stem 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 Size:XS , S , M , ML , L , XL , XXL
Tektro MD-M280 mechanical disc, 160mm rotor Size:XS , S , M , ML , L , XL , XXL
Tektro MD-M281 mechanical disc

Weight

Weight M – 14.40 kg / 31.75 lbs Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).