The Marlin 4 is the gateway mountain bike that will take you from rail trails to singletrack. It’s ideal for riders who want a mountain bike with knobby tyres that can double as a rugged commuter. Disc brakes, front suspension, Shimano 14-speed shifting and mounts for a rack and mudguards make this a great bike for 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 kerbs on the way to class.

The tech you get

A lightweight aluminium frame with internal routing to protect your cables and add to the bike’s sleek look, trustworthy 14-speed Shimano shifting with a wide range of gearing so you always have the right gear for your terrain, powerful hydraulic disc brakes and a suspension fork that takes the edge off bumps and rough terrain.

The final word

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

Why you’ll love it

1. The Marlin Gen 2 is ready to roll with easy to use features that help you get the best bang for your buck
2. Rack and mudguard mounts make it easy to accessorise, 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 Trek, it’s backed by a lifetime warranty

*Please note spec applies to all sizes unless listed separately

*Frame Size: XS , S
Alpha Silver Aluminium, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135×5 mm QR Size: M , ML , L , XL , XXL
Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135×5 mm QR *Fork Size: XS
SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5″ wheel, 100 mm QR, 80 mm travel Size: S
SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5″ wheel, 100 mm QR, 100 mm travel Size: M , ML , L , XL , XXL
SR Suntour XCE 28, coil spring, preload, 46 mm offset for 29″ wheel, 100 mm QR, 100 mm travel Max compatible fork travel 100 mm (XS and S: 490 mm axle-to-crown, M and up: 509 mm axle-to-crown)

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 152×5 mm QR Rim Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve Spokes 14 g stainless steel, black *Tyre 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″ Max tyre size Frame: 29×2.20″ (XS & S: 27.5×2.40″), Fork: See manufacturer

*Shifter Size: XS , S , M , ML , L , XL , XXL
Shimano EF500, 2-speed Size: XS , S , M , ML , L , XL , XXL
Shimano Altus EF500, 7-speed Front derailleur Shimano Altus M315, 34.9 mm clamp, top swing, dual pull Rear derailleur Shimano Tourney TY300 *Crank Size: XS , S , M
ProWheel TM-CY10, 36/22, 170 mm length Size: ML , L , XL , XXL
ProWheel TM-CY10, 36/22, 175 mm length Bottom bracket VP BC73, 73 mm, threaded cartridge Cassette Shimano TZ500, 14-34, 7-speed Chain KMC Z7, 7-speed Pedal VP-536 nylon platform Max. chainring size 1x: See FAQ, 2x: 36T, 3x: 42T

Saddle Bontrager Verse Short, stainless steel rails *Seatpost Size: XS , S
Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length Size: M
Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length Size: ML , L , XL , XXL
Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length *Handlebar Size: XS , S
Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width Size: M , ML , L , XL , XXL
Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width Grips Bontrager XR Endurance Comp, lock-on *Stem Size: XS , S
Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length Size: M
Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 60 mm length Size: ML , L
Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length Size: XL , XXL
Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 80 mm length Head set Semi-integrated, 1-1/8″ *Brake Size: XS , S , M , ML , L , XL , XXL
Tektro MD-M280 mechanical disc Size: XS , S , M , ML , L , XL , XXL
Tektro MD-M281 mechanical disc Size: XS , S , M , ML , L , XL , XXL
Tektro MD-M280 mechanical disc, 160 mm rotor Size: XS , S , M , ML , L , XL , XXL
Tektro MD-M281 mechanical disc, 160 mm rotor Brake rotor Tektro wave, 6-bolt, 160 mm Rotor size Max brake rotor sizes – Frame: 180mm, min 160mm, Fork: see fork manufacturer

Weight M – 14.60 kg / 32.19 lb 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.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.