The Specialized Stumpjumper 15 EVO Expert Di2 2026 bikewe’re featuring here atEscapais the perfect trail machine, capable of devouring the roughest terrain and most challenging trails while offering the fun, efficiency, and agility of a lightweight, short-travel trail bike
Key Features:
Frame: FACT 11m carbon, adjustable geometry, and SWAT
Front Suspension: 160mm FOX Float 36 Performance Elite, GRIP X2
Rear Shock: 145mm FOX FLOAT X Genie Performance Elite
Drivetrain: Shimano XT Di2
Traverse Alloy Wheels: 29" front // 27.5" rear for sizes S1–S2 // 29" rear for sizes S3–S6
GENIE makes every rider’s dreams come true
This revolutionary air suspension technology—which we invented and for which a patent is pending—is here to fulfill every Trail rider’s three wishes: the feel and traction of a coil spring shock, a system that prevents bottoming out better than a conventional air shock, and the ability to independently adjust the mid- and end-stroke travel.
What’s inside GENIE?
Check out how GENIE combines the linear spring rate—which improves control—of a coil spring through the “bump zone” with the progressive spring rate of an air spring at the end of the travel to reduce bottoming out. It’s the best of both worlds: coil and air, with extra tuning. Say goodbye to compromises and hello to the future of riding.
Optimize your rides with adjustable geometry
The Stumpjumper 15 features the most capable trail geometry on the planet. With six-way adjustability, customize your ride to perfectly suit your style and terrain. Explore our interactive Geo Finder to identify your ideal setup.
Devour the bumps like our Enduro
GENIE shock technology gives the Stumpy 15 16.3% better performance than the Stumpjumper EVO, the “Bike of the Year.” It literally uses more travel for a bump of the same size, thanks to its flatter spring rate over the first 70% of travel.
A 57% improvement in traction
GENIE offers 57% less traction loss time than a standard air shock because GENIE technology provides flexible, spring-like performance that keeps the wheel in contact with the ground a greater percentage of the time than a typical air shock would.
Say Goodbye to Bottom-Out
Ride with confidence knowing that in field tests, GENIE eliminated 39% of severe bottom-out events compared to a standard FOX Float air spring.
