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Men's Stumpjumper Comp Alloy 27.5 - 12-speed

2019 Men's Stumpjumper Comp Alloy 27.5 - 12-speed

No need to fret—we haven't forgotten about all you alloy fans out there. In fact, the new Stumpjumper Comp Alloy 27.5 with a 12-speed SRAM NX Eagle may be the most radically designed alloy bike ever made. For real, though. And with new tube shapes and an asymmetrical design, it's going to exceed all of your expectations of how a trail bike should ride.

Our design goal for the new Stumpjumper was simple—build the ultimate trail bike, one that feels telepathic. And it turns out that this feeling all comes down to stiffness. Think of it this way: when the frame's telling your hands one thing and your feet another, your brain gets confused with the imbalance and the bike feels unstable. In order to fix this, we had to get to work on dialing-in the material and shapes.

We continued down the suspension path with a custom Rx Trail Tune on both the fork and rear shock. Suspension performance is highly dependent on frame, wheel, and rider size, so we use our Rx Tune to get each bike to land in the middle of the adjustment spectrum, and this gives you the biggest possible range to fine-tune your ride. Another focal point of the tune was matching the suspension characteristics between wheel sizes—we developed a specific Rx Tune for each platform. So, no matter what wheel size you prefer, you'll get perfectly linear suspension.

Steps were also taken to make this bike easy to live with. Threaded bottom brackets make a triumphant return, and we made room for up to a 2.8'' tire. You're also free to run whatever aftermarket rear shock you want, since we're using standard metric shocks. And customization is furthered with a Flip Chip that lets you to dial-in your Stumpy to your riding style. Switch it from High to Low and it drops your bottom bracket 6mm and slackens the head tube by half-a-degree. Little details also jump out to surprise you, like a newly designed ribbed chainstay protector that makes chain slap a thing of the past and nearly silences the drivetrain.

The build on this Comp model comes with a list of components that deliver undeniable quality, like a 12-speed SRAM NX Eagle drivetrain, SRAM Guide R disc brakes, FOX front and rear suspension, and Roval Traverse 27.5 wheels.

Technical Specifications

FRAMESET

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

SUSPENSION

FORK

FOX FLOAT Rhythm, 34, GRIP Damper, 44mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 150mm of travel

REAR SHOCK

FOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 210x52.5mm

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, 780mm, 31.8mm clamp

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/XL: 150mm of travel

SEAT BINDER

Specialized bolt-type, alloy, 38.6mm

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

SHIFT LEVERS

SRAM NX Eagle, trigger, 12-speed

REAR DERAILLEUR

SRAM NX Eagle, 12-speed

CASSETTE

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

CRANKSET

SRAM NX Eagle, DUB, 170mm

CHAINRINGS

Steel, 32T

BOTTOM BRACKET

SRAM DUB, threaded BB

CHAIN

SRAM NX Eagle, 12-speed

WHEELS & TIRES

RIMS

Roval Traverse 27.5, hookless alloy, 30mm inner width, tubeless ready, 28h

FRONT HUB

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

REAR HUB

Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h

SPOKES

DT Swiss Industry

FRONT TIRE

Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"

REAR TIRE

Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"

INNER TUBES

Presta, 40mm valve

ACCESSORIES

PEDALS

Specialized Dirt

* 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 Length170MM170MM170MM170MM
Handlebar Width780mm780mm780mm780mm
Stem Length45MM45MM45MM45MM
Saddle Width143mm143mm143mm143mm
Seatpost Length376mm438mm438mm438mm
Stack592mm596mm623mm637mm
Reach415mm435mm455mm480mm
Head Tube Length105mm110mm140mm155mm
Head Tube Angle65.5°65.5°65.5°65.5°
BB Height336mm336mm336mm336mm
BB Drop21mm21mm21mm21mm
Trail112mm112mm112mm112mm
Fork Length, Full542mm542mm542mm542mm
Fork Rake/Offset46mm46mm46mm46mm
Front Center726mm748mm780mm812mm
Chainstay Length432mm432mm432mm432mm
Wheelbase1157mm1179mm1212mm1243mm
Top Tube Length, Horizontal570mm595mm627mm660mm
Bike Standover Height752mm757mm769mm770mm
Seat Tube Length380mm410mm455mm505mm
Seat Tube Angle75.3°75°74.6°74.2°
Geometry

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