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2020-2023

Marlin 4 Gen 2

Model 5255498

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.

Color / Matte Trek Black
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Pricing details

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Retailer pricing applies when you purchase goods online that the shop has in stock today. Order is subject to retailer acceptance.

Comp. Value

Our “Comparable Value” (Comp. Value) prices are based on the prices charged by Trek or other retailers, in-store or online, for the same or similar items. In most cases, this is a price at which Trek has offered the item for sale, and also the MSRP we provide to third-party resellers based on the prices of competing items in the market.

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*Please note - spec applies to all sizes unless listed separately

*FrameSize: XS , S
Alpha Silver Aluminum, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR
Size: M , ML , L , XL , XXL
Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR
*ForkSize: 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: M , ML , L , XL , XXL
SR Suntour XCE 28, coil spring, preload, 46mm offset for 29'' wheel, 100mm QR, 100mm travel
Max compatible fork travel100mm (XS & S: 490mm axle-to-crown, M & up: 509mm axle-to-crown)
Hub front Formula DC-20, alloy, 6-bolt, 5x100mm QR
Hub rear Formula DC-31, alloy, 6-bolt, 6/7/8 speed freewheel, 135x5mm QR
Skewer rear152x5mm QR
Rim Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve
Spokes 14g stainless steel, black
*TireSize: 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''
Size: M , ML , L , XL , XXL
Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.00''
Max tire sizeFrame: 29x2.20" (XS & S: 27.5x2.40"), Fork: See manufacturer
Shifter Shimano EF500, 7 speed
Front derailleur Shimano Tourney TY300, 34.9mm clamp, down swing, down pull
Rear derailleur Shimano Tourney TY300
*CrankSize: 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 bracketSize: 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 size1x: See FAQ, 2x: 36T, 3x: 42T
Saddle Bontrager Arvada, steel rails, 138mm width
*SeatpostSize: 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
*HandlebarSize: XS , S
Bontrager alloy, 31.8mm, 5mm rise, 690mm width
Size: M , ML , L , XL , XXL
Bontrager alloy, 31.8mm, 5mm rise, 720mm width
GripsBontrager XR Endurance Comp, lock-on
*StemSize: 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''
*BrakeSize: 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, 160mm rotor
WeightM - 14.40 kg / 31.75 lbs
Weight limitThis 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, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.

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