Hit the trails like the pros with the Stumpjumper 15 Alloy. This bike ticks all the boxes: it eats up bumps like a long-travel bike, it’s precise, fun and efficient with just the right amount of travel and offers plenty of customization options to make this the ultimate mountain bike for you. Saddle up and dominate the trails.

ADVANCED KINEMATICS — The quintessential trail bike, the Stumpjumper 15 Alloy combines performance with optimal impact force management. When it comes to anti-squat, we found the perfect balance between the previous Stumpjumper and the Stumpjumper EVO, two bikes synonymous with excellence in pedaling efficiency.

OPTIMIZED GEOMETRY: The geometry of this mountain bike offers great capabilities when you need them, a feeling of agility in twisty sections and a capacity to climb quickly and efficiently. The wide handlebars center you on the bike, optimizing traction and control in the turns. The low bottom bracket, the slack rake and the optimized offset of the fork ensure the stability of the bike in difficult passages.

RIDE YOUR WAY — The Stumpjumper 15 Alloy’s easily adjustable geometry makes it the most customizable trail bike ever. Six different geometry adjustment options let you tailor its performance to any riding style and terrain. The rake and bottom bracket height can also be adjusted to provide more or less stability or clearance.

FORM FOLLOWS FUN — We can make a super-stiff frame, but you can’t overdo it. To be one with your bike, you need a frame that’s designed to give you maximum comfort. We developed each part of our M5 aluminum chassis—front, rear, and mid-link—individually to meet the stiffness requirements of trail bikes.

WHEEL SIZE — All models equipped with coil springs are mounted on mixed wheels.

WHEEL CHOICE — With our separately available linkages, you can choose the speed, traction and benefits of big wheels front and rear (option available on S3, S4, S5, S6), or opt for mixed wheels with a 27.5" rear wheel for a more responsive and fun ride. Regardless of your choice, changing wheel size will not affect the geometry characteristics of the Stumpjumper 15.

GO OUT ALL GEARED — Our innovative SWAT storage hatch increases the storage capabilities of the Stumpjumper 15’s down tube.

TOUGHER THAN YOU — Our suspension bikes are built to be tough, offer unmatched durability, and take a beating for years to come. In addition to these technical advantages, Specialized also goes the extra mile to ensure you enjoy the trails for years to come with our customer service, policies, and warranties, which include, for example, replacement of your suspension pivot bearings upon request.