Description

Trek Session 8 29 GX Bike 2025 Overview

Build

Frame

Alpha Platinum Aluminum, high main pivot, idler pulley, integrated frame protection, internal or external routing, magnesium rocker link, Mino Link, ISCG 05 2-bolt mount, Active Braking Pivot, 157x12mm thru axle, 200mm travel

BB Standard: BSA, 83mm, Threaded

Tire Clearance: 2.5″

Color: Satin Trek Black

Fork

RockShox Boxxer, DebonAir+ spring, Rush RC damper, 52mm offset, BoostDH 110×20 Maxle Stealth, 200mm travel

Travel: 200mm

Spring Type: Air

Shock

Size: R1, Marzocchi Bomber, 400lb spring, 250mm x 72.5mm; Size: R2, Marzocchi Bomber, 450lb spring, 250mm x 72.5mm; Size: R3, Marzocchi Bomber, 500lb spring, 250mm x 72.5mm

Travel: 200mm

Bottom Bracket

SRAM DUB, 83mm, BSA threaded

Headset

FSA Orbit, sealed cartridge bearing, 1-1/8” top, 1.5” bottom (includes geometry adjust angled cups)

Stem

Bontrager Line Pro, 35mm, Direct Mount, 50mm length

Handlebar

Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width

Saddle

Bontrager Arvada, hollow chromoly rails, 138mm width

Seatpost

Bontrager Rhythm Elite, 31.6mm, 0mm offset, 330mm length

Type: Rigid

Pedals

Wellgo BO-87B, alloy body, Cro-Mo axle, replaceable pins

Grips

Bontrager XR Trail Elite, nylon lock-on

Groupset

Rear Derailleur

SRAM GX DH, medium cage

Crank

Truvativ Descendant DH, DUB 83, 34T steel ring, 165mm length

Shifters

SRAM GX DH, 7 speed

Cassette

SRAM PG-720, 11-25, 7 speed

Chain

SRAM PC-1110, 11 speed

Brakes

SRAM CODE Bronze 4-piston hydraulic disc

Type: Hydraulic Disc

Wheels

Rims

Front: Bontrager Line DH 30, Tubeless Ready, 6-bolt, 110x20mm Boost thru axle, 29”, Rear: Bontrager Line DH 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano 7 speed freehub, 157x12mm thru axle, 29”

Tires

Bontrager G5 Team Issue, wire bead, 2-ply 60 tpi, 29×2.50”

Disc Rotors

Size: R1, R2, R3, SRAM CenterLine, 6-bolt, round edge, 220mm; Size: R1, R2, R3, SRAM CenterLine, 6-bolt, round edge, 200mm

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