Mountain bike S-Works STUMPJUMPER 15

S-Works Stumpjumper 15
THE ULTIMATE TRAIL BIKE: The Stumpjumper 15 with GENIE is here to eliminate every trade-off in the off-road game. Want the bump-devouring capability of a big-travel bike? Check. Craving the control, playfulness, and efficiency of a short-travel setup? Double check. How about the ultimate in personalization to fine-tune your ride just for you? Check, check, and check.

BREAKTHROUGH CAPABILITY: GENIE Shock Technology delivers the playful pop of a short-travel bike with the bottomless feel of a downhill rig.

ULTIMATE CONTROL: Experience measurably superior traction compared to previous Stumpjumper models.

UNMATCHED PERSONALIZATION: Six-way geometry adjustment, mixed or 29” wheel compatibility, tunable spring curves, and more.

GENIE—The Magic Carpet Ride: The standout feature of the Stumpjumper 15 is GENIE, a patent-pending air spring technology that grants every trail rider’s three wishes: coil-spring feel and control, superior bottom-out resistance, and a customizable platform for playful performance.

ILLUMINATING GENIE: GENIE merges the control of a coil spring’s linear response through the bump zone with the progressive end-stroke support of an air spring. This combination ensures optimal bottom-out resistance and unmatched tunability—say goodbye to compromises and hello to the future of riding.

WHAT BUMP?: With 16.3% better bump force management than traditional air shocks, GENIE makes the Stumpjumper 15 feel like a bike with more travel. For example, it absorbs the same bump forces as bikes with significantly longer travel, ensuring a plush yet controlled ride.

TRACTION GALORE: Extensive testing shows GENIE-equipped Stumpjumper 15 offers 57% better traction compared to standard air shocks. Its supple, coil-like performance keeps the rear wheel connected to the ground more consistently, enhancing grip on any terrain.

BYE, BYE, BOTTOM-OUTS: Experience 39% fewer bottom-outs thanks to GENIE’s progressive stroke. Its rising rate in the final 30% of travel effectively manages big hits, reducing both the frequency and severity of harsh impacts.

HONED GEOMETRY: The Stumpjumper 15's geometry balances big-bike capability with nimble handling. A generous cockpit centers the rider for optimized traction and control, while a low bottom bracket, slack head angle, and optimized fork offset enhance stability in rough conditions.

RIDE YOUR WAY: Featuring six distinct geometry settings, the Stumpjumper 15 allows you to fine-tune performance for any style or terrain. Adjust head angle, bottom bracket height, and wheel setup to create your perfect ride.

WHEEL CHOICE: With aftermarket shock links, choose between full 29” wheels or a mixed setup with a 27.5” rear for a more playful feel—without affecting geometry.

CARRY IT ALL: SWAT 4.0 takes downtube storage to the next level, offering the smoothest, most weather-resistant system yet.

BUILT TO LAST: Designed for relentless performance, the Stumpjumper 15 is backed by Specialized’s lifetime bearing replacement policy and industry-leading support.

Key Features:

Lightweight FACT 11m carbon chassis with advanced rear-end and link design
High-performance Roval Traverse SL wheels with DT Swiss 240 hub
Ride Dynamics-tuned FOX FLOAT Factory with GENIE Shock Technology
FOX FLOAT 36 Factory fork with GRIP X2 damper
SRAM XX Eagle T-Type AXS drivetrain for precise shifting
Powerful SRAM Maven Ultimate 4-piston brakes
Smooth RockShox Reverb AXS dropper post
Lifetime bearing replacement policy
Compatible with electronic drivetrains only

Who Is This Model For?

The S-Works Stumpjumper 15 is built for off-road enthusiasts seeking the perfect blend of big-bike capability and playful, short-travel efficiency. Whether you're tackling technical descents or climbing steep trails, this bike delivers unmatched performance and personalization for riders who demand the best.