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Devils Peak | Table Mountain | Lion's Head | Signal Hill
Technical Specifications

Our Tour Bike

2021 Stump Jumper Comp Alloy 29 12-Speed

The Stump Jumper ST (short travel) with its new tube shapes and an asymmetrical design, the Stumpjumper ST Alloy 29 is sure to exceed your expectations of how a trail bike should ride.

The build here is no-nonsense with a focus on dependable, high-performing parts, like the Shimano SLX rear derailleur, Tektro Gemini disc brakes, a RockShox Recon RL fork with 130mm of travel, a custom X-Fusion 02 Pro RL rear shock with 120mm of travel, and wide alloy wheels.

Technical Specifications

Wheels

Rear Tire
Purgatory, GRID Casing, GRIPTON® compound, 29×2.3″

Rims
Roval 29, hookless alloy, 30mm inner width, tubeless ready

Front Tire
Butcher, GRID casing, GRIPTON® compound, 29×2.3″

Front Hub
Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h

Inner Tubes
Standard, Presta valve

Spokes
Stainless, 14g

Rear Hub
Alloy, sealed cartridge bearings, 12x148mm thru-axle, 32h

Technical Specifications

COCKPIT

Saddle
Body Geometry Bridge Saddle, steel rails

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

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

Tape
Specialized Trail Grips

Stem
Alloy Trail Stem, 35mm bar bore

Technical Specifications

Drivetrain

Chainrings
30T

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

Rear Derailleur
SRAM SX Eagle, 12-speed

Shift Levers
SRAM SX Eagle, trigger, 12-speed

Cassette
SRAM PG-1210 Eagle, 11-50t

Chain
SRAM SX Eagle, 12-speed

Bottom Bracket
SRAM Powerspline

Technical Specifications

Frameset

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

Rear Brake
Tektro Gemini Comp, hydraulic disc, resin pad, 180mm

Technical Specifications

Suspension

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

Rear Shock
X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout S1:190×42.5mm, S2-S6: 190x45mm