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No need to fret - we havent 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
No need to fret - we havent 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
Specialized

Specialized Stumpjumper Comp 27.5 12 Speed 2020 Mountain Bike Grey

£2,749.99   
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Specialized Stumpjumper Comp 27.5 12 Speed 2020 Mountain Bike Grey Information

Season : 2020

Brand : Specialized

Code : 93319-50

No need to fret - we havent 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 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 3.0' 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 27.5 wheels.

  • The completely redesigned alloy stumpjumper frame features an m5 alloy front- and rear-end, an asymmetrical design, and our 27.5 trail geometry, so it's just the right amount of both capable and comfortable.
  • 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.
Technical Information
  • 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
  • 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
  • FRONT HUB // Specialized, sealed cartridge bearings, 15x110mm spacing, 28h
  • REAR HUB // Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
  • SPOKES // DT Swiss Industry
  • RIMS // Roval Traverse 27.5, hookless alloy, 30mm inner width, tubeless ready, 28h
  • INNER TUBES // Presta, 40mm valve
  • FRONT TYRE // Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"
  • REAR TYRE // Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"
  • CRANKSET // SRAM NX Eagle, DUB, 170mm
  • CHAINRINGS // Steel, 32T
  • BOTTOM BRACKET // SRAM DUB, threaded BB
  • SHIFT LEVERS // Sram NX Eagle, trigger, 12-speed
  • REAR DERAILLEUR // SRAM NX Eagle, 12-speed
  • CASSETTE // SRAM NX Eagle, 12-speed, 11-50t
  • CHAIN // SRAM NX Eagle, 12-speed
  • 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
  • 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
  • STEM // Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise
  • SADDLE // Body Geometry Phenom Comp, Adaptive Edge design, 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 // Alloy, 38.6mm
  • PEDALS // Not Included
Sizing Information
Professional Opinion
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