Trek Marlin 7 Gen 3 2026 Mountain Bike

The Marlin 7 Gen 3 is your best friend on the trail and wherever else you roll thanks to its confidence-boosting trail geometry. It finds the perfect balance between price and performance with a RockShox suspension fork that makes quick work of rocks and bumps in your path, and loads of gears from the SRAM NX Eagle 12-speed drivetrain.

A lightweight aluminium frame with modern trail riding geometry and internal routing that keeps cables protected and keeps the bike looking sleek. A 100 mm RockShox Judy suspension fork that smooths out rowdy trails, upgraded 12-speed SRAM NX Eagle shifting and the serious stopping power of hydraulic disc brakes.

Key Features

• You get real-deal modern mountain bike geometry that keeps handling confident when you're on singletrack, but is versatile enough for use on roads and bike trails too


• You get a RockShox fork with 100 mm of suspension that turns rocks and roots in the trail into smooth-sailing and upgraded 12-speed SRAM Eagle shifting


• Mudguard mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter


• Internal routing makes it easy to add a dropper post that lets you lower your saddle on the fly for more confident descending


• Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount

Specifications

Frameset

• Frame: Alpha Silver Aluminium, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew


• Fork: RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 46 mm offset for 29 wheel, 100 mm QR, 100 mm travel

Wheels

• Rims: Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve


• Tyres: Maxxis Rekon, tubeless ready, EXO casing, folding bead, 60 tpi, 29x2.40'

Drivetrain

• Crankset: SRAM SX Eagle, 30T steel ring, 49 mm chainline


• Shifters: SRAM SX Eagle, 12-speed


• Rear Derailleur: SRAM NX Eagle, 12-speed


• Chain: SRAM SX Eagle, 12-speed


• Cassette: SRAM PG-1210 Eagle, 11-50, 12-speed


• Bottom Bracket: Truvativ Powerspline, 73 mm, threaded cartridge, 118 mm spindle

Components

• Handlebar: Bontrager alloy, 31.8 mm, 15 mm rise


• Stem: Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree


• Grips: Trek Line Comp, nylon lock-on


• Brakes: Shimano MT200 hydraulic disc


• Saddle: Bontrager Verse Short, stainless steel rails


• Seatpost: TranzX JD-YSI34, 150 mm travel, internal routing, 34.9 mm

Trek Marlin Sizing

Product code: 910424