Specialized Stumpjumper 15 Alloy – The Ultimate Trail Bike for Aggressive Riders
Crush climbs. Smash descents. Personalize your ride.
The 2025 Specialized Stumpjumper 15 Alloy is built for riders who want a do-it-all trail machine without compromise. Whether you’re powering up steep singletrack or railing berms on the descent, the Stumpjumper 15 Alloy combines big-bike capability with trail-bike agility and unmatched customization.
✅ Trail-Optimized Suspension & Kinematics
The Stumpjumper 15 Alloy features refined suspension kinematics for next-level efficiency and control. It strikes the perfect balance between the original Stumpjumper and EVO platforms, delivering incredible pedaling performance while soaking up chunky terrain with ease.
✅ Modern, Adjustable Geometry
Dial in your perfect ride. With six unique geometry settings, the Stumpjumper 15 Alloy adapts to any trail or riding style. Tweak head angle and bottom bracket height to boost confidence on technical descents or increase agility on tight, twisty trails.
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Slack head tube angle for stability in rough terrain
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Low bottom bracket for a planted feel
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Generous cockpit design for improved traction and cornering control
✅ Engineered Compliance Meets Alloy Strength
Crafted from M5 premium alloy, the frame is engineered to offer the perfect amount of stiffness and compliance—so it feels responsive without beating you up on long days. The full alloy chassis, including the front triangle, rear triangle, and linkage, is designed as a single, trail-optimized system.
✅ Mixed Wheel Setup with Adjustable Options
All coil-sprung models come with a mullet setup (29″ front / 27.5″ rear) for playful handling and responsive cornering. Want to run full 29″You can—geometry stays the same with an aftermarket link.
✅ Integrated SWAT™ Storage System
Carry tools, tubes, snacks, and more right in your frame. SWAT™ internal storage means you can ditch the backpack and ride prepared.
✅ Built to Last. Backed for Life.
The Stumpjumper 15 Alloy is built to handle years of abuse. Specialized backs every frame with a lifetime replacement guarantee on pivot bearings for the original owner. Ride with confidence—this bike is ready for anything.
