Our Stumpjumper ST models are snappy & nimble, yet Incredibly versatile—the perfect rigs for riders seeking both efficiency & capability. The Stumpjumper ST Alloy 29 makes that winning combo affordable, with components that are big on performance & small on dollar signs.
THE ULTIMATE TRAIL BIKE
The innovative sidearm frame design makes a lighter, better-handling bike. By directly connecting all three mounting points of the rear-end & shock to the frame, we’ve increased both stiffness & performance over bumps. End result? Total control.
Our in-house suspension-tuning team develops custom shock tunes, perfectly paired to each bike’s kinematics. We call this Rx Tune & while it’s not the easy way to build a suspension bike, it’s worth it. You feel Rx Tune as perfectly-balanced suspension.
SMART PARTS PICK
• 29er wheels roll over obstacles & maintain your momentum with ease.
• 130-millimeters of suspension courtesy of a RockShox Recon RL fork.
• SX Eagle 12-speed drivetrain gives you single-ring simplicity & gearing to spare.
Type: Full Suspension Mountain Bikes
Frame in inches: 15"
Riding Style: Trail
Wheel Size: 29"
Rear Derailleur: SRAM SX Eagle
Item condition: New
CHAIN SRAM SX Eagle, 12-speed BOTTOM BRACKET SRAM Powerspline CRANKSET SRAM SX Eagle, Powerspline, 170mm SHIFT LEVERS SRAM SX Eagle, trigger, 12-speed CASSETTE SRAM PG-1210 Eagle, 11-50t CHAINRINGS Steel, 30T REAR DERAILLEUR SRAM SX Eagle FORK RockShox Recon RL, Motion Control damper with low-speed compression to lockout, 51mm offset, rebound adjust, 15x110mm Boost™ Maxle® Lite thru-axle, 130mm of travel REAR SHOCK X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout 190x42.5mm FRONT HUB Specialized, sealed cartridge bearings, 15x110mm thru-axle, 32h REAR HUB Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h INNER TUBES Standard, Presta valve SPOKES Stainless, 14g RIMS Double-wall alloy, 27mm internal width FRONT TIRE Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3" REAR TIRE Purgatory, GRID Casing, 2Bliss Ready, 29x2.3" SADDLE Body Geometry Myth 155 S, Body Geometry Henge 143 M/L/XL, steel rails SEATPOST TransX dropper, 34.9mm, S: 125mm, M/L/XL: 150mm Travel STEM Specialized, 3D-forged alloy, 4-bolt, 7-degree rise HANDLEBARS Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp GRIPS Specialized Sip Grip, half-waffle, slip-on FRONT BRAKE Tektro Gemini Comp, hydraulic disc, resin pad, 200mm REAR BRAKE Tektro Gemini Comp, hydraulic disc, resin pad, 180mm PEDALS Specialized Dirt SEAT BINDER Specialized bolt-type, alloy, 38.6mm FRAME M5 alloy chassis & rear end, asymmetrical design, 29 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 120mm of travel