The Stumpjumper 15 Alloy Specialized 2025 is here to conquer all the pros and cons of trail riding. Does it devour bumps like a big bike? Check. Short travel control, precision, and efficiency? Double check.
And how about a healthy dose of customization to make it perfect for the only rider that truly matters: you? Check, check, check.
The GENIE shock technology combines a playful ride with a bottomless DH feel.
Traction better than the "Bike of the Year" Stumpjumper EVO.
> Unmatched customization: six-position geometry adjustment, mixed or 29" wheels, adjustable spring curve, and more.
The greatest innovation of the Stumpjumper 15 Alloy Specialized 2025 is GENIE. This air shock technology we've invented fulfills three rider wishes: the feel and control of a coil, better bottom-out prevention than a standard air shock, and an adjustable "platform" for a playful feel.
GENIE combines the linear spring rate of a coil, enhancing control in the "bump zone," with the progressive spring rate of an air shock at the end of the stroke to prevent bottoming out. It's truly the best of both worlds, coil and air, with more adjustability.
Field tests show that the Stumpjumper 15 Alloy Specialized 2025 with GENIE offers 57% more traction than a standard air shock, providing a spring-like performance that keeps the wheel in contact with the ground longer.
GENIE reduces bottom-outs by 39%, thanks to its steep rising rate in the last 30% of the stroke.
Generous cockpit space centers you on the bike, optimizing traction and cornering control. A low bottom bracket, slack head angle, and optimized fork offset ensure stability on rough terrain.
The Stumpjumper 15 Alloy Specialized 2025 integrates benchmark geometric adjustments, making it the most customizable trail bike ever. Six different geometry settings allow for performance tweaks on any terrain.
Post-market shocks offer the choice between full 29" or a 27.5" rear for a more responsive ride. Regardless of choice, geometry remains unaffected.
The SWAT 4.0 on the Stumpjumper 15 Alloy Specialized 2025 increases downtube storage with weatherproof protection.
Our bikes are built tough, designed to withstand years of hard riding.
The components of the bicycles, as described on this page, are those specified by the manufacturer at the time of launch of a new product.
Please note that these components may be subject to change without notice by the manufacturer for other components of similar characteristics.
If you need to confirm the specifications of any component, we recommend you visit the manufacturer's official website or contact our customer service team.