Specialized

Stumpjumper 15 Alloy 29 - 2025

$2,999.00
( 0 Reviews )

Stumpjumper 15 Alloy is here to obliterate every trade-off in the trail game. Devour bumps like a big bike? Check. Short-travel control, playfulness, and efficiency? Double check. How about a heaping helping of personalization to make it perfect for the only rider who really matters—you?  Check, check, check.

KINEMATICS PERFECTED: As the quintessential trail bike, Stumpjumper 15 Alloy balances efficiency and optimal bump force management. For the anti-squat on Stumpjumper 15 Alloy, we struck a balance between the previous Stumpjumper and Stumpjumper EVO, as both had excellent pedaling characteristics.

HONED GEOMETRY: This bike’s geometry delivers big bike capability when you need it, a nimble feel in tight sections, and lively, efficient climbing manners. The generous cockpit centers you on the bike, optimizing traction and corner control. The low bottom bracket, slack head tube angle, and optimized fork offset keep things stable in the rough.

RIDE YOUR WAY: The Stumpjumper 15 Alloy seamlessly integrates benchmark geo adjustability, making it the most personalizable trail bike ever. Six distinct geometry settings allow you to hone performance for any style and any terrain. The head angle and bottom bracket can be fine-tuned for stability or clearance.

FORM FOLLOWS FUN: We can make a frame as stiff as we want, but there’s such a thing as too stiff. To be one with the bike requires engineered compliance in the frame. We engineered the M5 Alloy chassis—front end, rear end, and the link between them—as a single unit that hits the stiffness target we established for trail riding.

WHEEL SIZE: All coil-sprung models come with mixed wheels.

WHEEL CHOICE: With our aftermarket link shock links, you can choose between big wheels front and rear or mix things up with a 27.5” rear for a more responsive and playful ride. No matter what you choose, geometry is unaffected.

CARRY IT ALL: SWAT on Stumpjumper 15 elevates downtube storage, an innovation we pioneered.

MORE RELENTLESS THAN YOU: Our full-suspension bikes are built to be relentless, designed to endure years of hard riding, and backed by the best support and programs to keep you on the trail. Our unbeatable lifetime, no-questions-asked replacement suspension pivot bearings to the original owner is just one way we've got you covered.

  • All-new M5 alloy frame with SWAT door integration
  • Ride Dynamics tuned X-Fusion 02 Pro RL shock with adjustable rebound and lockout
  • RockShox Psylo Silver fork with Motion Control Damper
  • Reliable Shimano MT-420 4-piston brakes
  • 12-speed Shimano Deore drivetrain
  • Lifetime replacement of suspension pivot bearings to the original owner

Frameset SWAT with internal downtube storage, Frame M5 Alloy chassis and rear-end, Trail Geometry, SWAT™ Door integration, adjustable head tube angle, threaded BB, internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, SRAM UDH compatible, 145mm travel, Seat Binder Alloy 38.6mm, Suspension Rear Shock X-Fusion 02 Pro RL Ride Dynamics Trail Tune rebound adjust lockout S1 210x52.5mm S2-S6 210x55mm, Fork RockShox Psylo Silver Motion Control Damper 15x110 axle 44mm offset S1 140mm travel S2-S6 150mm travel, Brakes Rear Shimano BR-MT420 4-piston caliper hydraulic disc S1-S2 180mm S3-S6 203mm, Front Shimano BR-MT420 4-piston caliper hydraulic disc 203mm, Drivetrain Chain Shimano Deore M6100 12-speed, Crankset Shimano Deore M6120 30T ring 55mm chainline S1-S3 165mm S4-S6 170mm, Cassette Shimano Deore M6100 12spd with Hyperglide+ 10-51t, Rear Derailleur Shimano Deore M6100 12spd Shadow Plus, Shift Levers Shimano Deore M6100 12spd, Wheels & Tires Rear Tire Eliminator GRID TRAIL casing GRIPTON® T7 compound 2Bliss Ready S1-S2 27.5x2.3 S3-S6 29x2.3", Rear Hub Alloy sealed cartridge bearings 12x148mm thru-axle 28h, Rims Specialized Alloy Tubeless Ready 29mm internal width 28h Front 29 Rear S1-S2 27.5 S3-S6 29, Front Hub Alloy sealed cartridge bearings 15x110mm thru-axle 28h, Spokes Stainless 14g, Inner Tubes Standard Presta valve, Front Tire Butcher GRID TRAIL casing GRIPTON® T9 compound 2Bliss Ready 29x2.3", Cockpit Stem Alloy Trail Stem 35mm bar bore, Saddle Bridge Steel rails S1-S2 155mm S3-S6 143mm, Handlebars Specialized 6000 series alloy 6-degree upsweep 8-degree backsweep S1-S2 780mm width 20mm rise S3-S4 800mm width 30mm rise S5-S6 800mm width 40mm rise, Grips Specialized Trail Grips, SeatPost TranzX Dropper remote SLR LE lever 34.9 S1 125mm S2 150mm S3 170mm S4-S6 200mm, Product Details ID 276239, Weight 16.57 kg (36 lb 8.5 oz)

 

COLORS

Satin Cast Blue
Gloss White Mountains

 

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