Trek Marlin 5 Mountain Bike 2026

Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. It features a trail-savvy frame with a suspension fork, 9-speed Shimano CUES shifting, and mounts for a rack and kickstand that make it an ideal choice for trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike. *Please note - spec applies to all sizes unless listed separately *Frame Size: XS Alpha Silver Aluminum, curved top tube, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew Size: S , M , ML , L , XL , XXL Alpha Silver Aluminum, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew *Fork Size: XS SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5'' wheel, 100 mm QR, 80 mm travel Size: S SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5'' wheel, 100 mm QR, 100 mm travel Size: M , ML , L , XL , XXL SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 29'' wheel, 100 mm QR, 100 mm travel Hub front Formula DC-20, alloy, 6-bolt, 100x5mm Skewer front Trek Thru-Skew Hub rear Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm Skewer rear 173x5mm QR Rim Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve Spokes 14g stainless steel, black *Tire Size: XS , S Bontrager Montrose Comp, wire bead, 30 tpi, 27.5x2.4'' Size: M , ML , L , XL , XXL Bontrager Montrose Comp, wire bead, 30 tpi, 29x2.4'' Max tire size Frame: 29x2.40" (XXS: 26x2.40", XS & S: 27.5x2.40"), Fork: See manufacturer Shifter Shimano U4000, 9 speed Rear derailleur Shimano CUES U4000 *Crank Size: XS , S , M , ML Shimano CUES U4001, 32T, 52mm chainline, 170mm length Size: L , XL , XXL Shimano CUES U4001, 32T, 52mm chainline, 175mm length Bottom bracket Shimano, 73mm, threaded cartridge, 122.5mm spindle Cassette Shimano LINKGLIDE LG300, 11-46, 9 speed Chain Shimano LG500, 9/10/11 speed Pedal Nylon platform Max chainring size 1x: See FAQ, 2x: 36T, 3x: 42T Saddle Bontrager Verse Short, stainless steel rails *Seatpost Size: XS , S , M Bontrager alloy, 31.6mm, 12mm offset, 330mm length Size: ML , L , XL , XXL Bontrager alloy, 31.6mm, 12mm offset, 400mm length *Handlebar Size: XS Bontrager alloy, 31.8mm, 5mm rise, 690mm width Size: S Bontrager alloy, 31.8mm, 15mm rise, 720mm width Size: M , ML , L , XL , XXL Bontrager alloy, 31.8mm, 15mm rise, 750mm width Grips Trek Line Comp, nylon lock-on *Stem Size: XS , S Bontrager Comp, 31.8mm, 7 degree, 35mm length Size: M , ML , L Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length Size: XL Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length Size: XXL Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 70mm length Headset Semi-integrated, 1-1/8'' *Brake rotor Size: XS , S , M , ML , L , XL , XXL Shimano RT26, 6-bolt, 160mm Size: M , ML , L , XL , XXL Shimano RT26, 6-bolt, 180mm Brake Set Shimano MT200 hydraulic disc Rotor size Max brake rotor sizes - Frame: 180mm (XXS: 160mm), Fork: see fork manufacturer