This Shimano Dura Ace FC-R9100 HOLLOWTECH II Crankset (2x11-speed) is wider than its predecessor but is still very lightweight by utilising the Hollowtech II technology. The highly rigid hollow structure cuts down on weight but still maintains strength resulting in better power transfer and more precise front shifting.
• Series: DURA-ACE
• Optimum power transfer
• Best balance for lighter weight (-7g) and efficiency
• New 4-arm design for same stiffness with lighter weight
• Hollowtech II construction
• 11-speed compatible
• Adapted for race specific disc brake system
• Shorter length of rear centre with O.L.D.135mm
• Redesigned gear teeth profile to fit wider gear pitch
• Iconic design
• Crank arm length: 175mm
• Gear combination: 52-36T
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