2025 Specialized Stumpjumper 15 Fox Coil Alloy Bike

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.

• Slack head tube angle for stability in rough terrain

• Low bottom bracket for a planted feel

• 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.

🔧 Key Features & Components:

• Frame: All-new M5 Alloy chassis w/ SWAT™ internal storage

• Fork: FOX FLOAT 38 Factory w/ GRIP X2 damper – serious stiffness & control

• Shock: Ride Dynamics-tuned FOX DHX Factory Coil

• Wheels: Roval Traverse Alloy w/ DT Swiss hubs

• Brakes: TRP DH-R EVO 4-piston hydraulic disc brakes

• Drivetrain: Shimano SLX – durable & performance-focused

• Dropper Post: PNW LOAM w/ adjustable travel

👉 Who It's For:

Riders seeking a versatile, aggressive trail bike that’s ready for technical terrain, massive climbs, and fast descents. Whether you're racing enduro or just chasing thrills on the weekend, the Stumpjumper 15 Alloy delivers.