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Men's Stumpjumper Comp Carbon 29 - 12-speed

2019 Men's Stumpjumper Comp Carbon 29 - 12-speed

Don't worry, S-Works doesn't get to have all of the fun—the new Stumpjumper Comp Carbon 29 features the same frame as the S-Works, with a full 11m carbon chassis and rear-end. Only here, we've included a solid list of no-fuss components, including a SRAM NX Eagle 12-speed groupset for the everyman's budget.

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 materials, shapes, and the layout.

We started by creating our own mountain-specific stiffness test, and then we looked at the layout with Finite Element Analysis (FEA) to see where we could get the biggest stiffness improvements. This led to a big discovery: The Large and X-Large frames needed more front-end stiffness while the Smalls and Mediums were just fine. We were able to create a frame design that was 20% more efficient. And in the end, this proved to be one of the lightest trail frames on the market, today.

When designing the frame with the stiffness targets being a main goal, we developed a radical new sidearm design. The front-end and rear-end are connected at three points, and the sidearm helps keep all these points super stiff and connected, all while taking about 100 grams out of the rear-end. More explicitly, this minimizes frame flex when the rear suspension is active.

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 2.6" tire. You're also free to run whatever aftermarket rear shock you want, since we're using standard metric shocks. We revamped the SWAT™ box, too, making it sleeker, lighter, and with more volume. 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. Lastly, we seriously couldn't make cable routing any easier on carbon models. Full tubes can be found throughout the carbon frame, so all you have to do is push the cable and it'll come out the other end. No more lazy loop, hidden stashes of magnets, pokey spokes, or pillows to cry in.

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 29 wheels.

Technical Specifications

FRAMESET

FRAME

FACT 11m carbon chassis and rear-end, asymmetrical design, 29 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 140mm of travel

SUSPENSION

FORK

FOX FLOAT Rhythm 34, GRIP Damper, 51mm 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, 210x50mm

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

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

SADDLE

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

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

REAR DERAILLEUR

SRAM NX Eagle, 12-speed

CRANKSET

SRAM NX Eagle, DUB, 170mm

SHIFT LEVERS

SRAM NX Eagle, trigger, 12-speed

CASSETTE

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

CHAINRINGS

Steel, 30T

CHAIN

SRAM NX Eagle, 12-speed

BOTTOM BRACKET

SRAM DUB, threaded BB

WHEELS & TIRES

FRONT HUB

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

RIMS

Roval Traverse 29, hookless alloy, 30mm inner width, tubeless ready, 28h

SPOKES

DT Swiss Industry

REAR HUB

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

INNER TUBES

Standard, Presta valve

REAR TIRE

Purgatory, GRID casing, GRIPTON® compound, 2Bliss ready, 29 x2.6"

FRONT TIRE

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

ACCESSORIES

PEDALS

Specialized Dirt

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

Geometry

SMLXL
Crank Length170mm170mm170mm170mm
Handlebar Width780mm780mm780mm780mm
Stem Length45MM45MM45MM45MM
Saddle Width143mm143mm143mm143mm
Seatpost Length376mm438mm438mm438mm
Stack614mm614mm641mm656mm
Reach405mm425mm445mm470mm
Head Tube Length95mm95mm125mm140mm
Head Tube Angle66.5°66.5°66.5°66.5°
BB Height342mm342mm342mm342mm
BB Drop33mm33mm33mm33mm
Trail107mm107mm107mm107mm
Fork Length, Full560mm560mm560mm560mm
Fork Rake/Offset51mm51mm51mm51mm
Front Center714mm734mm766mm797mm
Chainstay Length437mm437mm437mm437mm
Wheelbase1149mm1169mm1201mm1232mm
Top Tube Length, Horizontal572mm595mm628mm662mm
Bike Standover Height747mm750mm762mm775mm
Seat Tube Length380mm410mm455mm505mm
Seat Tube Angle74.8°74.5°74.1°73.7°
Geometry

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