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156 Q-Factor
168 Q-Factor
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SRAM XX1 11 Speed Crankset

Developed for maximum chain control, each tooth’s thickness is precisely CNC-machined to support the chain’s inner and outer links perfectly. Six available chain rings (28-30-32-34-36-38) allow you to tune your gear range to match your terrain, wheel size and riding style. Each X-SYNC™ chain ring fits a single, universal spider—allowing you to change rings without removing the light-weight carbon crank arm.

“Please note, chainring is NOT included”


  • New tooth profile alternates thickness by inner and outer links, providing maximum chain control
  • Carbon arms with forged aluminum spider
  • CNC-machined rings (28-30-32-34-36-38)
  • New spider design allows for easier ring changes
  • Wide/narrow Q factor cranks for BB30 and GXP
  • Weight: 650 grams with BB


  • Arm Material: Carbon arms with forged aluminum spider
  • Weight: 650 grams
  • Available Arm Lengths: 170, 175mm arm lengths
  • Available Ratios: 28, 30, 32, 34, 36, 38
  • Rings: CNC machined rings
  • Bottom Bracket: BB30, GXP
  • Q-Factor: wide and narrow
  • Technology Highlight(s): X-SYNC


  • BB30: Besides serious weight savings, this bottom bracket means narrow Q-factor, more ankle clearance, greater bearing durability and stronger crank construction.
  • GXP: GXP’s Gutter Seal design cuts friction, durability and weight—improving both feel and performance.
  • X-Sync™: A CNC-machined, “wide tooth, narrow tooth” pattern is repeated around the entire XX1 chainring, perfectly mirroring the 1X11 XX1 specific chain’s inner and outer links for maximum control

Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Colour: Black
  • Size: 156 Q-Factor, 168 Q-Factor
  • Option: BB30, GXP
  • BoltCircle: 76mm
  • Speed: 11 Speed
  • Length: 170mm, 175mm
  • Material: Carbon