2025 Specialized Stumpjumper 15 Comp Features
Stumpjumper 15 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.
BREAKTHROUGH CAPABILITY: GENIE Shock Technology combines a poppy, playful ride with a bottomless DH feel.
ULTIMATE CONTROL: Measurably better traction than “Bike of the Year” Stumpjumper EVO.
UNMATCHED PERSONALIZATION: Six-way geometry adjustment, mixed wheel or 29”, tunable spring curve, and more.
GENIE—The Magic Carpet Ride: The biggest innovation on the Stumpjumper 15 is GENIE. This patent-pending air spring technology that we invented grants every trail rider’s three wishes: the feel and control of a coil spring, better bottom-out prevention than a standard air spring, and a tunable “platform” for a playful feel.
- Lightweight FACT 11m carbon chassis and rear-end
- Robust Specialized alloy wheels with sealed cartridge bearings
- Ride Dynamics tuned FOX FLOAT Performance with Specialized GENIE patent-pending air spring technology provides maximum grip and traction found in a linear coil spring, bottom-out prevention found in a progressive air spring, and the ability to tune mid-stroke and end-stroke support independently. 2-position open and firm damper adjustments.
- Eat up the chunkiest trails with the FOX FLOAT 36 Rhythm fork with GRIP damper
- Smooth and precise shifting from SRAM Eagle T-Type AXS drivetrain
- Big braking power from SRAM Maven Bronze 4-piston brakes
- Trustworthy time and time again X-Fusion Manic dropper post
- Lifetime replacement of suspension pivot bearings to the original owner
- Compatible with electronic drivetrains only
Product Specifications
Product Specifications
Bottom Bracket |
SRAM DUB, BSA 73mm Wide, Threaded |
Brakes |
Front Brake: SRAM Maven Bronze, 4-piston caliper, hydraulic disc, 200mm Rear Brake: SRAM Maven Bronze, 4-piston caliper, hydraulic disc, 180mm |
Cassette |
SRAM XS-1270 Transmission Cassette, 12spd, 10-52t |
Chain |
SRAM GX Eagle Transmission Flattop Chain |
Crankset |
SRAM S1000 Crankset, 32T ring, Integrated Guard, 55mm Chainline, 165mm |
Fork |
FOX FLOAT 36 Rhythm, GRIP damper, two position Sweep adjustment, 15x110mm QR axle, 44mm offset, 140mm of travel |
Frame |
FACT 11m carbon |
Front Hub |
Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h |
Front Tire |
Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3" |
Grips |
Specialized Trail Grips |
Handlebar |
Specialized, 6000 series alloy, 6-degree upsweep, 8-degree backsweep. 780 width, 20mm rise |
Rear Derailleur |
SRAM S1000 Eagle Transmission Derailleur |
Rear Hub |
Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h |
Rear Shock |
FOX FLOAT Performance with Specialized GENIE Shock Tech, Ride Dynamics Trail Tune, 2-position lever w/ LSR adjustment, 210x52.5mm |
Rear Tire |
Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready, 27.5x2.3" |
Saddle |
Bridge Comp, Hollow Cr-mo rails, 155mm |
Seatpost |
X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SLR LE lever, 34.9, 125mm |
Shifters |
SRAM AXS POD Controller |
Spokes |
DT Swiss Industry |
Stem |
Alloy Trail Stem, 35mm bar bore |
Wheels |
Specialized, hookless alloy, 30mm inner width, tubeless ready |