S-Works Stumpjumper Frame
Part No.  

S-Works Stumpjumper Frame

Part No.  
S-Works Stumpjumper Frame
Technical Specifications
Looking to build a cross-country bike so light (size medium frame is under 1 kilo) that it'd make most road bikes blush? Start with the lightest hardtail we've ever built.
  • S-Works carbon single-bolt 27.2mm seatpost takes this already featherweight package to its absolute minimum without sacrificing stiffness or strength
  • Light and lean FACT 11m carbon HT frame brings its best to the mountain with a stiff, tapered head tube, carbon drive-side dropout, and oversized bottom bracket for unsurpassed stiffness and strength

Technical Specifications

SEATPOST S-Works Carbon, 27.2mm, single-bolt head, 15.5/17.5"": 350mm, others: 400mm
HEADSET 1-1/8 and 1.5"" Threadless, Campy style upper with 1.5"" lower, cartridge bearings
SEAT BINDER 32.6mm clamp, one bolt for carbon frame/post
FRAME FACT 11m carbon, FACT IS construction, carbon PF-30 BB, tapered HT, hollow carbon dropouts, replaceable alloy derailleur hanger


Geometry Chart

- Geometry

  15.5 17.5 19 21
Crank Length 170mm 175mm 175mm 175mm
Stem Length 75mm 90mm 105mm 105mm
Seatpost Length 350mm 350mm 400mm 400mm
Handlebar Width 660mm 660mm 660mm 660mm
Reach 378mm 407mm 436mm 450mm
Stack 556mm 580mm 603mm 625mm
Chainstay Length 424mm 424mm 424mm 424mm
Top Tube Length (Actual) 538mm 562mm 591mm 615mm
Ground-Top 860mm 884mm 907mm 929mm
Top Tube Length (Horizontal) 555mm 585mm 615mm 640mm
Head Tube Angle - Low Setting 70.5° 70.5° 70.5° 70.5°
Standover Height 770mm 800mm 830mm 870mm
Head Tube Height 120mm 130mm 145mm 165mm
Wheel Base 1064mm 1068mm 1109mm 1129mm
Seat Tube Angle (Actual) - Low Setting 73° 73° 73° 73°
Seat Tube Length - Center to Top 394mm 445mm 483mm 533mm
Bottom Bracket Height - Low Setting 304mm 304mm 304mm 304mm