Stumpjumper 15 EVO Alloy Comp

An adjustable alloy trail bike with GENIE suspension, confident braking, and a durable SRAM T-Type build. The Stumpjumper 15 EVO Alloy Comp is a full-suspension trail bike built around an M5 alloy chassis, 145mm of rear travel, and a FOX FLOAT X Performance shock with Specialized GENIE technology. Up front, a FOX FLOAT 36 Rhythm fork and size-specific 150mm or 160mm travel give it the control to stay composed when trails get rough, while SRAM Eagle 70 T-Type shifting and SRAM DB8 Stealth brakes keep the build practical and durable. SWAT downtube storage, geometry adjustment, and tubeless-ready alloy wheels make it an easy fit for riders who want one bike that can cover a lot of ground.

Key Features

• M5 alloy frame with 145mm rear travel, internal cable routing, threaded bottom bracket, and SWAT downtube storage.
• FOX FLOAT X Performance rear shock with Specialized GENIE air spring technology and Ride Dynamics Trail Tune.
• FOX FLOAT 36 Rhythm fork with GRIP damper, 150mm travel on S1 and 160mm on S2-S6.
• SRAM Eagle 70 T-Type 12-speed drivetrain with a 10-52t cassette for wide-range gearing.
• SRAM DB8 Stealth hydraulic disc brakes for strong, consistent stopping power.
• Specialized hookless alloy rims with 30mm internal width and tubeless-ready construction.
• Butcher GRID TRAIL T9 front tire paired with an Eliminator GRID TRAIL rear tire for a balanced trail setup.
• Adjustable geometry lets riders fine-tune handling, and aftermarket shock links support mixed-wheel or full 29 configurations.

Specs Snapshot

• Frame: M5 alloy chassis and rear end, 145mm travel
• Rear Shock: FOX FLOAT X Performance with Specialized GENIE, 210x55mm
• Fork: FOX FLOAT 36 Rhythm, GRIP damper, 150mm on S1, 160mm on S2-S6
• Drivetrain: SRAM Eagle 70 T-Type, 12-speed, 32T crankset, 10-52t cassette
• Brakes: SRAM DB8 Stealth front and rear
• Wheels: Specialized hookless alloy, 30mm inner width, tubeless ready
• Front Tire: Butcher GRID TRAIL, Gripton T9, 29x2.4
• Rear Tire: Eliminator GRID TRAIL, Gripton T7, 27.5x2.4 on S1-S2, 29x2.4 on S3-S6
• Seatpost: X-Fusion Manic dropper, 125mm to 190mm depending on size
• Weight: 16.55 kg / 36 lb 7.8 oz in size S4

Recommended Use
Best for riders who want a versatile trail bike that can handle technical descents, longer mixed-terrain rides, and everyday aggressive trail use without stepping fully into enduro territory. Its adjustable geometry and suspension package make it especially appealing for riders who like to tune handling to match their local trails.

Bottom Line
The Stumpjumper 15 EVO Alloy Comp is a highly adjustable alloy trail bike with modern suspension, dependable parts, and real range across varied terrain.