Marlin 4 is the perfect gateway to trail riding. It's ideal for new riders who want a mountain bike with knobby tyres, 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. 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, 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 SR Suntour XCE 28, coil spring, preload, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel. Max compatible fork travel100mm (XS & S: 490mm axle-to-crown, M & up: 509mm axle-to-crown). Wheels 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, 20 mm width, Schrader valve. Spokes14 g stainless steel. Tyre Size: XS , S Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20". Size: M , ML , L , XL Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20". Size: M , ML , L , XL Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.00". Max tyre size Frame: 29x2.20" (XS & S: 27.5x2.4") Fork: See manufacturer. Drivetrain Shifter Shimano Altus EF500, 7-speed. Front derailleur Shimano Tourney TY300, 34.9 mm 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, 170 mm length. Size: ML , L , XL Shimano Tourney TY301, 42/34/24, 175 mm length. Bottom bracket VP BC73, 73 mm, threaded cartridge. Cassette Shimano TZ500, 14-28, 7--speed. Chain KMC Z7, 7-speed. Pedal VP-536 nylon platform. Max. chainring size1x/2x: 34T, 3x: 42T. Components Saddle Bontrager Arvada, steel rails, 138 mm width. 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 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 Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width. Grips Bontrager XR Endurance Comp. Stem Size: XS Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 50 mm length. Size: S Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length. Size: M Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length. Size: ML , L Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length. Size: XL Bontrager alloy, 31.8 mm clamp, Blendr-compatible, 7-degree, 90 mm length. Head set Semi-integrated, 1-1/8". Brake Size: XS , S , M , ML , L , XL Tektro MD-M280 mechanical disc, 160 mm rotor. Size: XS , S , M , ML , L , XL Tektro MD-M281 mechanical disc. Weight 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 136 kg (300 lb). PLEASE NOTE BIKES ARE STORE PICKUP OR LOCAL AREA DELIVERY ONLY WE CAN NOT COURIER. PLEASE CONTACT YOUR LOCAL STORE TO CHECK AVAILABILITY.