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
