Dura Ace FC-R9100
Product # 350690
  • Optimum power transfer
  • Maintains high rigidity and reduces weight (-7g)
  • Best balance for light weight and efficiency
  • 4-arm construction crankset
  • New design crank arm, adapted for race specific disc brake system
  • Redesigned gear teeth profile to fit wider chain angles
  • Compatible with shorter chainstays (410mm) on frames with 135mm or 142mm spacing
Specs
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