CyclingBicyclesMountainSpecialized 2020 Stumpjumper Comp Carbon 650b Full Suspension Mountain Bike
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Product Description

Don't worry, S-Works doesn't get to have all of the fun—the new Stumpjumper Comp Carbon 27.5 features the same frame with a full 11m carbon chassis and rear-end as its older brother, but with a solid list of no-fuss components, including a SRAM NX Eagle 12-speed groupset, for an everyman's budget.
Specialized’s 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, they had to get to work on dialing-in the materials, shapes, and the layout.
Specialized started by creating their own mountain-specific stiffness test, and then they looked at the layout with Finite Element Analysis (FEA) to see where they 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. They 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, they 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.
Specialized 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 they use their 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—they 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 hey made room for up to a 3.0' tire. You're also free to run whatever aftermarket rear shock you want, since we're using standard metric shocks. Specialized 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, they 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 27.5 wheels

  • The Stumpjumper's asymmetrical, FACT 11m carbon fiber construction is lightweight, stiff, and ready to take on the trail. It's built off Specialized’s 27.5 Trail Geometry, so it's just the right amount of both capable and comfortable. And with SWAT integration in the down tube, a threaded BB, easy cable routing, and an all new chain silencer, it's ready for anything the trail, or you, throw at it.
  • The FOX DPS Performance rear shock features our Rx Trail Tune, ensuring that no matter the wheel or frame size, your bike is dialed-in perfectly.
  • SRAM's 12-speed NX Eagle groupset features a wide gear range that delivers climbing and descending efficiency in spades.


FrameFACT 11m, full carbon chassis and rear-end, asymmetrical design, 27.5 Trail Geometry, SWAT Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel
ForkFOX FLOAT Rhythm, 34, GRIP Damper, 44mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 150mm of travel
Rear ShockFOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 210x52.5mm
Shift LeversSram NX Eagle, trigger, 12-speed
Rear DerailleurSRAM NX Eagle, 12-speed
BrakesSRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm (front), SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm (rear)
CranksetSRAM NX Eagle, DUB, 170mm
CassetteSRAM NX Eagle, 12-speed, 11-50t
Bottom BracketSRAM DUB, threaded BB
ChainSRAM NX Eagle, 12-speed
HubsSpecialized, sealed cartridge bearings, 15x110mm spacing, 28h (front), Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h (rear)
SpokesDT Swiss Industry
RimsRoval Traverse 27.5, hookless alloy, 30mm inner width, tubeless ready, 28h
TiresButcher, GRID casing, GRIPTON compound, 2Bliss Ready, 27.5 x 2.6" (front), Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6" (rear)
PedalsSpecialized Dirt
StemSpecialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise
HandlebarsSpecialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
GripsSpecialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
SaddleBody Geometry Phenom Comp, Adaptive Edge design, hollow Cr-Mo rails, 143mm
Seat PostX-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 BinderAlloy, 38.6mm


*Specifications are subject to change without notice
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Specialized 2020 Stumpjumper Comp Carbon 650b Full Suspension Mountain Bike

$4,519.99

Color: Carbon-Red
EK3E84971-Color
EK3E84975-Color
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