The choice of the world's best climbers, sprinters, and time trialists, the DURA-ACE R9100 crank drops weigh while maximizing power transfer. The new design, and its iconic look, is adapted for race specific disc brake systems while still offering a wide range of gearing and crank arm length options.
- Optimum power transfer
- Best balance for lighter weight (-7 g) and efficiency
- New designed crank arm
- Maintains high rigidity and reduces weight
- HOLLOWGLIDE
- 4-arm construction crankset
- Adapted for race specific disc brake system
- Shorter length of rear center with O.L.D.135 mm
- Redesign the gear teeth profile to fit wider gear pitch
- Rider tuned gearing options
- Iconic design
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