Product Info
Details + Specs
Stumpjumper 15 EVO Alloy - SRAM NX Eagle, RockShox/X-Fusion
One trail bike, fewer compromises
Stumpjumper 15 EVO Alloy is here to obliterate every trade-off in the trail game. It devours bumps like a big bike, delivers short-travel control, playfulness, and efficiency, and comes with a heaping helping of personalisation to make it perfect for the only rider who really matters: you.
Best for: Trail and all-mountain riding across technical climbs and descents.
At a glance
Frame
M5 Alloy chassis, Trail Geometry, SWAT™ Door integration, head tube…
Fork
RockShox Psylo Silver, Motion Control Damper, 15x110mm axle, 44mm…
Shock
X-Fusion O2 Pro RL, Ride Dynamics Trail Tune, adjustable rebound and…
Drivetrain
SRAM NX Eagle, 12-speed trigger
Weight
16.79 kg / 37 lb (size S4)
Rear Shock
X-Fusion O2 Pro RL, Ride Dynamics Trail Tune, adjustable rebound and…
Key highlights
front end, rear end, and the link between them engineered as a single unit, with SWAT™ Door downtube storage integration built in.
six distinct geometry settings let you fine-tune head angle and bottom bracket height for stability or clearance, on any given trail.
a 150/160mm (size-specific) fork pairs with a Ride Dynamics Trail-tuned 145mm rear shock with adjustable rebound and lockout.
wide-range 11-50t gearing for grinding up climbs and hammering back down.
Complete specification
Full build details
Components are grouped by bike system so the complete build is easy to scan.
Frameset
Frame
M5 Alloy chassis, Trail Geometry, SWAT™ Door integration, head tube angle adjustment, 145mm travel, 12x148mm dropouts
Suspension
Fork
RockShox Psylo Silver, Motion Control Damper, 15x110mm axle, 44mm offset, 150mm travel (S1) / 160mm travel (S2-S6)
Rear Shock
X-Fusion O2 Pro RL, Ride Dynamics Trail Tune, adjustable rebound and lockout, 210x55mm
Brakes
Brakes
SRAM DB6, 4-piston, hydraulic disc (front and rear)
Drivetrain
Shifters/Rear Derailleur
SRAM NX Eagle, 12-speed trigger
Cassette
SRAM NX Eagle, 12-speed, 11-50t
Chain
SRAM NX Eagle, 12-speed
Crankset
SRAM NX Eagle DUB, 32t (165mm arms S1-S3 / 170mm S4-S6)
Bottom Bracket
SRAM DUB, threaded, wide
Wheels and tyres
Wheels
Specialized alloy, 29mm internal width
Tyres
Butcher, 29x2.4″ (front); Eliminator, 27.5x2.4″/29x2.4″ size-specific (rear)
Cockpit and contact points
Handlebars
Specialized alloy, 780-800mm width (size-specific)
Stem
Specialized alloy, 40mm
Seatpost
TranzX dropper, 125-200mm travel (size-specific)
Saddle
Body Geometry Bridge
Weight and sizing
Weight
16.79 kg / 37 lb (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.