Product Info
Details + Specs
Stumpjumper 15 EVO Alloy Comp - SRAM Eagle 70, FOX Rhythm
One trail bike, fewer compromises
Stumpjumper 15 EVO Alloy is here to obliterate every trade-off in the trail game. Devour bumps like a big bike? Check. Short-travel control, playfulness, and efficiency? Double check.
Best for: Trail and all-mountain riding across technical climbs and descents.
At a glance
Frame
M5 Alloy, Trail Geometry, SWAT Door integration, head tube angle…
Fork
FOX FLOAT 36 Rhythm, GRIP damper, 2-position Sweep adjustment, 150/160mm…
Shock
FOX FLOAT X Performance, Specialized GENIE Shock Tech, Ride Dynamics…
Drivetrain
SRAM Eagle 70 Transmission, 12-speed
Weight
16.55 kg / 36 lb 7.8 oz (size S4)
Rear Shock
FOX FLOAT X Performance, Specialized GENIE Shock Tech, Ride Dynamics…
Key highlights
A 145mm-travel chassis with SWAT door-integrated downtube storage and Specialized's patent-pending GENIE air spring for coil-like grip and progressive bottom-out control.
150/160mm of travel (size-specific) with a GRIP damper and 2-position Sweep adjustment to soak up chunky trail terrain.
A direct-mount 12-speed wide-range groupset with a 10-52t cassette, built for durability and consistent shifting under load.
Big, reliable stopping power for the steepest, roughest descents.
Complete specification
Full build details
Components are grouped by bike system so the complete build is easy to scan.
Frameset
Frame
M5 Alloy, Trail Geometry, SWAT Door integration, head tube angle adjustment, 145mm travel
Suspension
Fork
FOX FLOAT 36 Rhythm, GRIP damper, 2-position Sweep adjustment, 150/160mm travel (size-specific)
Rear Shock
FOX FLOAT X Performance, Specialized GENIE Shock Tech, Ride Dynamics Trail Tune, 2-position lever
Brakes
Brakes
SRAM DB8 Stealth, 4-piston hydraulic disc (front and rear)
Drivetrain
Shifters
SRAM Eagle 70
Rear Derailleur
SRAM Eagle 70 Transmission, 12-speed
Cassette
SRAM XG-1270, 12-speed, 10-52t
Chain
SRAM Eagle 70 Transmission, 12-speed
Crankset
SRAM Eagle 70, 32T
Wheels and tyres
Wheels
Specialized hookless alloy, 30mm inner width; Specialized alloy hubs, sealed cartridge bearings
Tyres
Butcher 29x2.4 (front); Eliminator 27.5x2.4 or 29x2.4, size-dependent (rear)
Cockpit and contact points
Handlebars
Specialized alloy, 780-800mm width
Stem
Alloy Trail Stem, 35mm bore
Seatpost
X-Fusion Manic dropper, 125-190mm (size-dependent)
Saddle
Bridge Comp
Weight and sizing
Weight
16.55 kg / 36 lb 7.8 oz (size S4)
Weight is based on a production painted bike in the stated reference size. Actual weight can vary with colour, size and component variation. Specifications are subject to change without notice.