S-Works Stumpjumper 29
Part No.  

S-Works Stumpjumper 29

Part No.  
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S-Works Stumpjumper 29
Overview
Technical Specifications
Reviews
This purpose-built S-Works Stumpjumper hard tail features a Shimano XTR drivetrain and a full complement of top-of-the-line components.
  • All-new FACT IS 11m carbon frame with dedicated 29er geometry and full SWAT technology kit, internal cable routing, PF30 BB, and 142mm dropouts for the lightest race-ready design
  • Custom RockShox SID World Cup 29 fork with Specialized Brain inertia-valve damping has 90mm of air-sprung travel, a carbon steerer tube, and 15mm thru-axle to create the most efficient and supple cross-country fork available
  • Carbon hookless Roval Control SL 29 142+ wheelset, complete with 142mm spacing, DT Swiss spokes and internals, is insanely stiff, light and durable for greater control and acceleration
  • The all-new, lighter and stiffer Specialized FACT OSBB, PF30, carbon crankset with a one piece spider/arm combo makes for the ultimate power transfer
  • Magura MT8 hydraulic disc brakes with a carbon master cylinder, carbon lever blade and reach adjust provide consistent and reliable stopping power
  • Shimano XTR 10-speed shifting complete with an 11-36 cassette is tough, lightweight, and delivers pinpoint shifts

Technical Specifications

DRIVETRAIN
CHAIN Shimano XTR 981
BOTTOM BRACKET PF30, OS press-in bearings, sealed cartridge
CRANKSET S-Works OS carbon, integrated 1-piece spider, 10-speed XC double, SRAM rings, S: 170mm, Others: 175mm
FRONT DERAILLEUR Shimano XTR M986, down-swing, 34.9mm clamp, dual-pull
SHIFT LEVERS Shimano XTR, 10-speed
CASSETTE Shimano XTR M980, 10-speed, 11-36
CHAINRINGS 38/24
REAR DERAILLEUR Shimano Shadow Plus XTR, 10-speed, GS mid cage
SUSPENSION
FORK Custom RockShox SID World Cup 29 Brain, inertia valve damper, Solo Air spring, tapered carbon crown/steerer, top-mount Brain Fade and rebound adj., 15mm thru-axle, S: 80mm, Others: 90mm travel
WHEELS
FRONT HUB Roval Control SL 29, alloy hub body w/ Labyrinth seal design, 15mm thru-axle, 24h
REAR HUB Roval Control SL 29 142+, DT Swiss Star Ratchet, 12mm thru-axle, 28h
SPOKES DT Swiss Revolution, 2.0/1.5/2.0mm stainless
FRONT TIRE S-Works Fast Trak, 2Bliss Ready, 29x2.0"", foldable aramid bead, 120 TPI
RIMS Roval Control SL 29, carbon disc, 22mm internal width, 24h/28h
REAR TIRE S-Works Fast Trak, 2Bliss Ready, 29x2.0"", foldable aramid bead, 120 TPI
COCKPIT
SADDLE Body Geometry Phenom Expert, hollow TI rails, 143mm
SEATPOST Specialized carbon, 2-bolt, 27.2mm, S: 350mm, Others: 400mm
STEM Syntace F109, 6-degree rise, 31.8mm clamp
HANDLEBARS S-Works XC, flat bar, carbon, 700mm wide, 8-degree backsweep, 31.8mm
GRIPS Specialized Sip Grip, light lock-on, half-waffle aramid-infused, S/M: regular, Others: XL thickness
BRAKES
FRONT BRAKE Shimano XTR hydraulic disc, post mount, Ti/metal pad, Ice Tech, 160mm rotor
BRAKE LEVERS Shimano XTR 985 hydraulic, w/I-Spec clamps
REAR BRAKE Shimano XTR hydraulic disc, post mount, Ti/metal pad, Ice Tech, 160mm rotor
FRAMESET
SWAT Bottle cage, EMT Tool, and Top Cap Chain Tool w/ SWAT Technology
HEADSET 1-1/8 and 1-1/2"" threadless, Campy style upper with 1-1/2"" lower, cartridge bearings
SEAT BINDER Specialized 7050 hard anodized alloy, single bolt, 31.8mm
FRAME FACT 11m carbon, 29"" geometry, FACT IS construction, tapered headtube, carbon PF30 BB, full internal shift/brake routing, 142+ dropouts, PM 160 rear brake, replaceable alloy rear derailleur hanger

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