The Stumpjumper Comp Alloy 27.5 combines the balanced stiffness and incredible precision of our sidearm frame design with a 12-speed SRAM NX Eagle drivetrain. The end result is a bike that outperforms its price tag by a wide margin.
THE ULTIMATE TRAIL BIKE
The innovative sidearm frame design makes a lighter, better-handling bike. By directly connecting all three mounting points of the rear-end and shock to the frame, we’ve increased both stiffness and performance over bumps.
Our in-house suspension-tuning team develops custom shock tunes, perfectly paired to each bike’s kinematics. We call this Rx Tune and while it’s not the easy way to build a suspension bike, it’s worth it. You feel Rx Tune as perfectly-balanced suspension. Total control.
MASSIVE BANG FOR YOUR BUCK
• Sidearm frame design offers balanced stiffness and precise handling.
• FOX DPS Performance rear shock delivers perfectly-dialed rear suspension.
• NX Eagle 12-speed drivetrain gives you single-ring simplicity and gearing to spare.
•Bottom Bracket: SRAM DUB, threaded BB
•Cassette: SRAM NX Eagle, 12-speed, 11-50t
•Chain: SRAM NX Eagle, 12-speed
•Chainrings: Steel, 30T
•Crankset: SRAM NX Eagle, DUB, 170mm
•Fork: FOX FLOAT RHYTHM, 34, GRIP damper, 44mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 150mm of travel
•Frame: M5 alloy chassis and rear-end, asymmetrical design, 27.5 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel
•Front Brake: SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm
•Front Hub: Specialized, sealed cartridge bearings, 15x110mm spacing, 28h
•Front Tire: Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"
•Grips: Specialized Sip grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
•Handlebars: Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
•Inner Tubes: Presta, 40mm valve
•Pedals: Specialized Dirt
•Rear Brake: SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm
•Rear Derailleur: SRAM NX Eagle, 12-speed
•Rear Hub: Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
•Rear Shock: FOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 210x52.5mm
•Rear Tire: Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"
•Rims: Roval Traverse 27.5, hookless alloy, 30mm inner width, tubeless ready
•Saddle: Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
•Seat Binder: Specialized bolt-type, alloy, 38.6mm
•Seatpost: X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, S: 125mm, M/L: 150mm, XL: 170mm
•Shift Levers: SRAM NX Eagle, trigger, 12-speed
•Spokes: DT Swiss Industry
•Stem: Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise