Specialized Stumpjumper Comp Alloy 29 2020

The new Specialized Stumpjumper Comp Alloy 29 may be the most radically designed alloy bike ever made. 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. 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, Specialized had to get to work on dialing-in the material and shapes. 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 Specialized's 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 - Specialized 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 Specialized made room for up to a 3.0" tire. You're also free to run whatever aftermarket rear shock you want, since their 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 here is no-nonsense with a focus on dependable, high-performing parts, like a Shimano SLX drivetrain with RaceFace cranks, Shimano SLX disc brakes, FOX front and rear suspension, and Roval Traverse 29 alloy wheels.

• Key Features
  • The completely redesigned alloy Stumpjumper frame features an M5 alloy front- and rear-end, an asymmetrical design, and Specialized's 29 Trail Geometry, so it's just the right amount of both capable and comfortable.
  • The FOX DPS Performance rear shock features Specialized's Rx Trail Tune, ensuring that no matter the wheel or frame size, your bike is dialed-in perfectly.
  • A FOX 34 Rhythm fork handles suspension duties up front, with stiff stanchions and plenty of adjustability.
• Suggested Use
  • All-Mountain / Trail / Enduro
• 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
• 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
• Handlebars
  • Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
• 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
• Brakes
  • Front: Shimano SLX, hydraulic disc, resin pads, 200mm rotor
  • Rear: Shimano SLX, Hydraulic Disc, Resin Pad
• Rear Derailleur
  • Shimano XT, Shadow Plus, GS cage, 11-speed
• Shift Levers
  • Shimano SLX, 11-speed
• Crankset
  • RaceFace Aeffect, 24mm spindle, 170mm crankarm, and 30T Chainring
• Bottom Bracket
  • Threaded BB, 24mm spindle
• Chain
  • KMC X11, 11-speed with Missing Link™
• Cassette
  • Shimano SLX, 11-speed, 11-46t
• Wheels
  • 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 29, hookless alloy, 29mm inner width, tubeless ready, 28h
  • Inner Tubes: Presta, 40mm valve
• Tires
  • Front: Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.6"
  • Rear: Purgatory, GRID casing, GRIPTON® compound, 2Bliss ready, 29 x2.6"
• 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
  • Specialized bolt-type, alloy, 38.6mm

* Specifications are subject to change without notice