Marlin 4 Gen 3 Shimano 8s Bontrager Connection

Dedicated consultancy

Customised configuration

Safe and secure payment in instalments

Free delivery and insured

Trade-in appraisal exchange service

The Trek Marlin 4 Gen 3 is a versatile hardtail mountain bike for riders who want to explore off-road routes without giving up everyday practicality. Equally suited to first trail adventures, commuting and weekend outings, it combines confidence-inspiring trail geometry with a suspension fork that helps absorb bumps and irregular surfaces. The result is a bike designed to make the transition from city streets to dirt paths feel natural, even for riders discovering mountain biking for the first time.

Its Alpha Silver Aluminium frame features internal cable routing for a clean look and added protection from the elements. Integrated rack and kickstand mounts extend its usefulness well beyond recreational riding, making it easier to equip the bike for daily transport. Trek's Smart Wheel Size approach matches wheel diameter to frame size, helping riders of different heights find suitable proportions and comfortable handling. The hardtail layout keeps the design straightforward and makes the Marlin a practical choice for varied riding plans.

The 8-speed drivetrain combines a Shimano ESSA U2000 rear derailleur with a Shimano M315 shifter and an 11-45 Shimano HG300 cassette. A ProWheel crankset with a 30-tooth narrow-wide chainring completes this functional setup, offering accessible gear selection for changing terrain. Hydraulic disc brakes provide controlled stopping power for the mix of paved surfaces and off-road tracks this bike is intended to handle.

Bontrager Connection double-wall rims are paired with Bontrager Montrose Comp tyres, while a Bontrager Verse Short saddle and Bontrager alloy handlebar complete the everyday-ready specification. Whether the destination is a local trail, a weekend ride or a regular trip across town, the Trek Marlin 4 Gen 3 brings together MTB character and the convenience of a bike that can be used throughout the week. Its practical design supports everything from local trails to daily trips.

Frame

Alluminio Alpha Silver, passaggio cavi interno per deragliatore posteriore e reggisella telescopico, attacchi per portapacchi e cavalletto, ThruSkew 135x5 mm (XS, S, M, ML, L, XL, XXL); tubo orizzontale ricurvo (XS).

Fork

SR Suntour XC 28, molla elicoidale, precarico, 100 mm QR; offset 42 mm per ruote da 27,5" (XS, S), offset 46 mm per ruote da 29" (M, ML, L, XL, XXL); escursione 80 mm (XS), 100 mm (S, M, ML, L, XL, XXL).

Groupset

Shimano

Brakes

Disco idraulico Tektro HD-M276 (XS, S), Tektro HD-M275 (M, ML, L, XL, XXL); Power BH-M286TF con rotore da 160 mm (XS, S, M, ML, L, XL, XXL) o 180 mm (M, ML, L, XL, XXL).

Controls

Shimano M315, 8 velocità

Rear Derailleur

Shimano ESSA U2000

Cassette

Shimano HG300, 11-45, 8 velocità

Crankset

ProWheel in lega, corona in acciaio 30T narrow-wide; lunghezza pedivelle 160 mm (XS), 170 mm (S, M, ML), 175 mm (L, XL, XXL).

Tires

Bontrager Montrose Comp, tallone rigido, 30 TPI; misura 27,5x2,40" (XS, S), 29x2,40" (M, ML, L, XL, XXL).

Wheels

Bontrager Connection

Stem

Bontrager Comp, diametro 31,8 mm, inclinazione 7°; compatibilità Blendr (M, ML, L, XL, XXL); lunghezza 35 mm (XS, S), 50 mm (M, ML, L), 60 mm (XL), 70 mm (XXL).

Handlebar

Bontrager in lega, diametro 31,8 mm; rise 5 mm (XS), 15 mm (S, M, ML, L, XL, XXL); larghezza 690 mm (XS), 720 mm (S), 750 mm (M, ML, L, XL, XXL).

Saddle

Bontrager Verse Short, binari in acciaio inossidabile

Seat post

Bontrager in lega, diametro 31,6 mm, offset 12 mm; lunghezza 330 mm (XS, S, M), 400 mm (ML, L, XL, XXL).

Warranty

Official Trek

Notes

Crank length, handlebar size and seat width can be found in the geometries tab.
For customizations, sizing advice, or any questions, feel free to contact us! Test rides available at our headquarters.