Specialized Stumpjumper 15 EVO Comp Alloy Mountain Bike 2026 - Trail Full Suspension MTB

The Specialized Stumpjumper 15 EVO Comp Alloy combines a tough M5 alloy frame, FOX 36 Rhythm fork, GENIE shock technology and SRAM Eagle 70 12-speed drivetrain. With adjustable geometry and SWAT storage, it’s a versatile trail bike built for big days on the mountain.

Key Features

• M5 alloy frame with SWAT storage and 145mm rear travel
• FOX FLOAT 36 Rhythm fork with 150–160mm travel
• FOX FLOAT X Performance rear shock with GENIE air spring, 145mm travel
• SRAM Eagle 70 12-speed drivetrain
• SRAM DB8 4-piston hydraulic disc brakes
• 29” alloy wheels with Butcher/Eliminator GRID Trail tyres
• Six-way adjustable geometry and dropper seatpost
• Available with 0% APR finance

The Specialized Stumpjumper 15 EVO Comp Alloy has been engineered to deliver breakthrough capability on the trails. Its M5 alloy chassis uses Trail Geometry for a centred rider position, stable handling and efficient climbing. SWAT downtube storage offers clever integration for carrying essentials, while the frame features sealed cartridge bearing pivots, threaded bottom bracket and UDH compatibility for durability and serviceability.

The star of the bike is the GENIE rear shock technology, a patent-pending air spring design that blends the supple feel and grip of a coil shock with the bottom-out resistance and tunability of air. It allows riders to independently adjust mid-stroke and end-stroke support, offering better traction, fewer bottom-outs and a smoother ride through technical terrain. With 145mm of rear travel, the Stumpjumper 15 Alloy punches above its weight in bump absorption and control.

Up front, the FOX FLOAT 36 Rhythm fork with GRIP damper delivers 150–160mm of travel depending on frame size, giving precise handling and confidence in steep or rough terrain. Together with the rear shock, the suspension is Ride Dynamics tuned for a balanced feel across climbs, descents and technical trails.

The drivetrain is SRAM Eagle 70 T-Type, a robust and precise 12-speed setup designed for the rigours of modern trail riding. Paired with a 10–52T cassette, it offers a huge gear range for winching up climbs and powering along descents. SRAM DB8 4-piston hydraulic brakes provide strong, consistent stopping power to match.

Wheels are Specialized alloy hookless rims with a 30mm inner width, tubeless-ready and fitted with Butcher GRID Trail T9 front and Eliminator GRID Trail T7 rear tyres. This pairing balances grip, rolling efficiency and durability. An X-Fusion Manic dropper post adds confidence on steep sections, with travel scaled to frame size.

The Stumpjumper 15 EVO Comp Alloy also offers six-way geometry adjustment, so riders can fine-tune head angle and bottom bracket height for stability or clearance. It’s even compatible with mixed-wheel setups for those who prefer a more playful rear end.

For riders who want a trail bike that delivers coil-like grip, modern adjustability and all-day capability in a durable alloy package, the Stumpjumper 15 EVO Comp Alloy sets a new standard.

Occasionally, without notice, manufacturers change product design and/or specifications.