Stumpjumper Alloy

Overview

The Stumpjumper Alloy brings all-new suspension kinematics and progressive geometry into a full-alloy package that’s both lightweight and extremely durable. Outfitted with a no-fuss SRAM SX 12-speed groupset, the Stumpjumper Alloy is your all-access pass for trail adventure.

Tech Specs

Frame

Alloy chassis and rear-end, asymmetrical design, 29 Trail Geometry, horst pivot BB adjustment, threaded BB, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel

Fork

RockShox 35 Silver, Solo Air, 44mm offset, rebound adjust, TurnKey lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 140mm of travel

Bottom bracket

Tektro Gemini Comp, hydraulic disc, resin pad, 200mm

Stem

Alloy Trail Stem, 35mm bar bore

Handlebar

Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 780mm width

Saddle

Body Geometry Bridge Saddle, steel rails

Seat post

TranzX dropper, 34.9mm, S1: 100mm, S2: 125mm, S3: 150mm. S4-S5: 170mm, S6- 200mm

Group set

Rear derailleur

SRAM SX Eagle, 12-speed

Crank

SRAM SX Eagle, S1:165mm, S2-S5: 170mm, S6: 175mm

Shifters

SRAM SX Eagle, trigger, 12-speed

Cassette

SRAM PG-1210 Eagle, 11-50t

Chain

SRAM SX Eagle, 12-speed

Brakes

SRAM Powerspline

Wheel set

Rims

Double-wall alloy, 27mm internal width, 28h

Tires

Butcher, GRID casing, GRIPTON® T7 compound, 29×2.3″