Stumpjumper 15 Comp Alloy 2025

Description

The Stumpjumper 15 Alloy with GENIE gives you the benefits of a bike with generous travel, and also those of a bike with short travel, all together. – Allan Cooke. The Stumpjumper 15 Alloy erases every compromise in the trail world. Devour big obstacles like a bike with generous travel? Done. Control, playfulness and efficiency like an XC bike? Done. Plenty of customization options to make it perfect for the only rider that really matters: you? Done, done, done. REVOLUTIONARY CAPABILITY: GENIE technology pairs a snappy, playful ride with a DH travel feel. SUPREME CONTROL: Tangibly better traction than the "Bike of the Year," the Stumpjumper EVO. GENIE—The magic carpet: The biggest innovation on the Stumpjumper 15 Alloy is GENIE. This patent-pending air spring technology we invented grants every cyclist's three wishes: the feel and control of a coil spring, better bottom-out prevention than a standard air spring and an adjustable platform for a playful feel. THE 'GENIUS': GENIE combines the linear stiffness of the coil spring that improves control through the "impact zone" with the progressive curve of the air spring at the end of the stroke to prevent bottom-outs. Really, it's the best of both worlds – coil and air – with extra tunability. Say goodbye to compromises and welcome the future of suspension. WHICH IMPACT?: With impact force handling 16.3% better than a traditional air spring damper, GENIE makes the Stumpy 15 perform like a bike with greater travel. For example, the Stumpjumper 15 Alloy (with 145 mm rear wheel travel) and our Enduro (170 mm travel) both use 101 mm of stroke to absorb an impact force of 1080 N. TRACTION GALORE: Thorough field testing shows the Stumpjumper 15 Alloy with GENIE delivers 57% better traction than a standard air spring damper because GENIE technology offers flexible, coil-like performance that keeps the wheel in contact with the ground for a higher percentage of the time than a typical air spring. GOODBYE BOTTOM OUT: 39% fewer bottom-out events compared to a standard air spring. In case of big hits, you'll benefit from the progressive curve in the last 30% of GENIE stroke. Thanks to the two-stage behavior, GENIE reduces the frequency and severity of bottom-out events. REFINED GEOMETRY: this bike's geometry delivers big capability when you need it, agility in tight sections, and climbing efficiency. The wide cockpit centers you on the bike, optimizing traction and cornering control. The low bottom bracket, relaxed head angle and optimized fork offset promote stability even on technical terrain. YOUR WAY: the Stumpjumper 15 Alloy seamlessly integrates geometry adjustment, making it the most customizable trailbike ever. Six distinct geometry settings let you fine-tune performance for any style and terrain. Head angle and bottom bracket height can be precisely adjusted to guarantee stability or clearance. WHEEL CHOICE: With our aftermarket links you can choose between big wheels on both front and rear, or you can run a 27.5″ rear wheel for more responsive, playful riding. Whatever you choose, geometry isn't compromised. CARRY EVERYTHING YOU NEED: The SWAT 4.0 compartment on the Stumpjumper 15 Alloy increases space in the downtube, an innovation we pioneered.

Specifications