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
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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
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Rack and fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter
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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
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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
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Like every model in the Marlin family, it's backed by Trek's lifetime warranty
Specifications
*spec applies to all sizes unless otherwise noted
| Frame | Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR |
|---|---|
| *Fork | 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 |
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| Size: M , ML , L , XL , XXL SR Suntour XCE 28, coil spring, preload, 46mm offset for 29'' wheel, 100mm QR, 100mm travel |
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| 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, 5x100 mm QR |
|---|---|
| Hub rear | Formula DC-31, alloy, 6-bolt, 6/7/8-speed freewheel, 135x5 mm QR |
| Rim | Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve |
| Spokes | 14 g stainless steel |
| *Tire | 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" |
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| Size: M , ML , L , XL , XXL Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.00" |
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| Max tire size | Frame: 29x2.20" (XS & S: 27.5x2.4") Fork: See manufacturer |
| Shifter | Shimano Altus EF500, 7-speed |
|---|---|
| Front derailleur | Shimano Tourney TY300, 34.9mm clamp, down swing, down pull |
| Rear derailleur | Shimano Tourney TY300, long cage, 34T max cog |
| *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 |
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| Bottom bracket | VP BC73, 73mm, threaded cartridge |
| 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 |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
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| *Seatpost | Size: XS , S Bontrager alloy, 31.6mm, 12mm offset, 330mm length |
| Size: M Bontrager alloy, 31.6mm, 12mm offset, 360mm length |
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| Size: ML , L , XL , XXL Bontrager alloy, 31.6mm, 12mm offset, 400mm length |
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| *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 |
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| Grips | Bontrager XR Endurance Comp, lock-on |
| *Stem | Size: XS Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length |
| Size: S Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length |
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| Size: M Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length |
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| Size: ML , L Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 80mm length |
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| Size: XL , XXL Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 90mm length |
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| 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 | M - 30.82 lbs / 13.9815 kg |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
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.
Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.
Sizing & Tech
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.