


Trek Marlin 4 2026
The Marlin 4 is an everyday bike that’s perfectly suited to trails and daily adventures, on dirt or on tarmac. It features a trail-ready frame with a suspension fork, an 8-speed Shimano ESSA drivetrain, and mounts for a rack and kickstand, making it the ideal choice for trail enthusiasts or anyone looking for a comfortable, stable commuter with the toughness of a real mountain bike.




Specifications
| Parts | Parts |
|---|---|
| Frame | Size: XXS, XS Alpha Silver Aluminum, curved top tube, internal routing for rear derailleur and dropper post, rack and kickstand mounts, ThruSkew 135x5 mm Size: S, M, ML, L, XL Alpha Silver Aluminum, internal routing for rear derailleur and dropper post, rack and kickstand mounts, ThruSkew 135x5 mm |
| Fork | Size: XXS SR Suntour XCM 30, coil spring, lockout, preload, QR 100 mm, 100 mm travel, 26" wheel Size: XS SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5" wheel, QR 100 mm, 80 mm travel Size: S SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5" wheel, QR 100 mm, 100 mm travel Size: M, ML, L, XL SR Suntour XCE 28, coil spring, preload, 46 mm offset for 29" wheel, QR 100 mm, 100 mm travel |
| Tires | Size: XXS Bontrager Montrose Comp, wire bead, 30 tpi, 26x2.35" Size: XS, S Bontrager Montrose Comp, wire bead, 30 tpi, 27.5x2.40" Size: M, ML, L, XL Bontrager Montrose Comp, wire bead, 30 tpi, 29x2.40" |
| Front wheel | Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve / Formula DC-20, alloy, 6-bolt, 100x5 mm |
| Rear wheel | Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve / Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub body, 135x5 mm |
| Brakes | Size: XXS, XS, S Tektro HD-M276, hydraulic disc Size: XXS, XS, S, M, ML, L, XL Power BH-M286TF hydraulic disc, 160 mm rotor Size: M, ML, L, XL Tektro HD-M275, hydraulic disc Size: M, ML, L, XL Power BH-M286TF hydraulic disc, 180 mm rotor |
| Rear derailleur | Shimano ESSA U2000 |
| Shifter | Shimano M315, 8-speed |
| Crankset | Size: XXS, XS ProWheel alloy, steel narrow-wide 30T chainring, 160 mm length Size: S, M, ML ProWheel alloy, steel narrow-wide 30T chainring, 170 mm length Size: L, XL ProWheel alloy, steel narrow-wide 30T chainring, 175 mm length |
| Cassette | Shimano HG300, 11-45, 8-speed |
| Chain | KMC Z8.3, 8-speed |
| Handlebar | Size: XXS, XS Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width Size: S Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width Size: M, ML, L, XL Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width |
| Stem | Size: XXS, XS, S Bontrager Comp, 31.8 mm, 7 degrees, 35 mm length Size: M, ML, L Bontrager Comp, 31.8 mm, Blendr compatible, 7 degrees, 50 mm length Size: XL Bontrager Comp, 31.8 mm, Blendr compatible, 7 degrees, 60 mm length |
| Grips | Trek Line Comp, nylon lock-on |
| Seatpost | Size: XXS Bontrager alloy, 31.6 mm, 12 mm offset, 300 mm length Size: XS, S, M Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length Size: ML, L, XL Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length |
| Weight | 14.9 kg / 32.85 lbs |






