Kit Frame Stumpjumer 15 Alloy 2025

Description

The Stumpjumper 15 Alloy with GENIE gives me the benefits of a long-travel bike, and those of a short-travel bike, all in one. – Allan Cooke. The Stumpjumper 15 Alloy wipes out every trail compromise. Smashing big hits like a long-travel bike? Done. XC-level control, playfulness and efficiency? Done. Tons of customisation to make it perfect for the only rider who really matters — you? Done, done, done. REVOLUTIONARY CAPABILITY: GENIE technology pairs snappy, playful handling with a DH-travel feel. SUPREME CONTROL: Noticeably 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 rider'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 coil spring rate that improves control through the "impact zone" with the progressive air spring curve at the end of the stroke to prevent bottom-outs. Seriously, it's the best of both worlds — coil and air — with extra adjustability. Say goodbye to compromise and welcome the future of suspension. WHAT IMPACT?: With 16.3% better impact force management than a traditional air spring shock, GENIE makes the Stumpy 15 ride like a bigger-travel bike. 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 FOR DAYS: Extensive real-world testing shows the Stumpjumper 15 Alloy with GENIE delivers 57% better traction than a standard air spring shock, because GENIE technology offers flexible, coil-like performance that keeps the wheel in contact with the ground for a greater percentage of the time than a typical air spring. GOODBYE BOTTOM OUT: 39% fewer bottom-out events than a standard air spring. When big hits come your way, you'll benefit from the progressive curve in the last 30% of the GENIE stroke. Thanks to its two-phase behaviour, GENIE reduces both the frequency and severity of bottom-out events. DIALLED GEOMETRY: the geometry of this bike delivers serious capability when you need it, agility in tight sections, and efficiency on the climbs. The wide cockpit centres you on the bike, optimising traction and cornering control. The low bottom bracket, relaxed head angle and optimised fork offset all promote stability even on technical terrain. YOUR WAY: the Stumpjumper 15 Alloy integrates geometry adjustment seamlessly, making it the most customisable trail bike ever. Six distinct geometry settings let you fine-tune performance for any riding style and terrain. Head angle and bottom bracket height can be precisely adjusted to dial in stability or clearance. WHEEL OF CHOICE: With our aftermarket links you can run big wheels both front and rear, or swap in a 27,5″ rear wheel for a more responsive and playful ride. Whatever you choose, the geometry stays unaffected. CARRY EVERYTHING YOU NEED: The SWAT 4.0 compartment on the Stumpjumper 15 Alloy expands storage inside the down tube — an innovation we pioneered.

Specifications