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Stumpjumper Comp Alloy 29

2020 Stumpjumper Comp Alloy 29

The Stumpjumper Comp Alloy 29 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. End result? Total control.

PERFECTLY-BALANCED SUSPENSION

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.

MASSIVE BANG FOR YOUR BUCK

• Roval Traverse 29er wheels roll over obstacles and maintain momentum with ease.

• FOX DPS Performance rear shock delivers perfectly-dialed rear suspension.

• NX Eagle 12-speed drivetrain gives you single-ring simplicity and gearing to spare.

Technical Specifications

FRAMESET

FRAME

M5 alloy chassis and rear end, asymmetrical design, 29 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 140mm of travel

SEAT BINDER

Specialized bolt-type, alloy, 38.6mm

SUSPENSION

REAR SHOCK

FOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 210x50mm

FORK

FOX FLOAT RHYTHM, 34, GRIP damper, 51mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 150mm of travel

COCKPIT

STEM

Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise

HANDLEBARS

Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 31.8mm clamp, XS 720mm, S-XL 750mm,

GRIPS

Specialized Sip grip, half-waffle, S/M: regular thickness, L/XL: XL thickness

SADDLE

Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm

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

BRAKES

FRONT BRAKE

SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm

REAR BRAKE

SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm

DRIVETRAIN

REAR DERAILLEUR

SRAM NX Eagle, 12-speed

SHIFT LEVERS

SRAM NX Eagle, trigger, 12-speed

CASSETTE

SRAM NX Eagle, 12-speed, 11-50t

CHAIN

SRAM NX Eagle, 12-speed

CRANKSET

SRAM NX Eagle, DUB, 170mm

CHAINRINGS

Steel, 30T

BOTTOM BRACKET

SRAM DUB, BSA 73mm, Threaded

WHEELS

RIMS

Roval Traverse 29, hookless alloy, 30mm inner width, tubeless ready

FRONT HUB

Specialized, sealed cartridge bearings, 15x110mm spacing, 28h

REAR HUB

Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h

SPOKES

DT Swiss Industry

FRONT TIRE

Butcher, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.6"

REAR TIRE

Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"

INNER TUBES

Standard, Presta valve

* Weights based on production painted frames as pictured. Actual weights will vary based on colourway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

SMLXL
Crank Length170170170170
Handlebar Width780mm780mm780mm780mm
Stem Length45454545
Saddle Width143mm143mm143mm143mm
Seatpost Length375438438478
Stack619mm619mm642mm656mm
Reach405mm425mm445mm470mm
Head Tube Length100mm100mm125mm140mm
Head Tube Angle66.5°66.5°66.5°66.5°
BB Height341mm341mm341mm341mm
BB Drop33mm33mm33mm33mm
Trail107mm107mm107mm107mm
Fork Length, Full560mm560mm560mm560mm
Fork Rake/Offset51mm51mm51mm51mm
Front Center716mm736mm766mm797mm
Chainstay Length437mm437mm437mm437mm
Wheelbase1151mm1171mm1201mm1232mm
Top Tube Length, Horizontal573mm597mm628mm662mm
Bike Standover Height756mm762mm775mm776mm
Seat Tube Length380mm410mm455mm505mm
Seat Tube Angle74.8°74.5°74.1°73.7°
Geometry

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