Product details
The choice of the world's best climbers, sprinters, and time trialists, the Dura-Ace R9100 chainring drops weight while maximising power transfer.
The new design, and its iconic look, is adapted for race specific disc brake systems.
Features
- Best balance for lighter weight (-7g) and efficiency
- Maintains high rigidity and reduces weight
- Shorter length of rear center with O.L.D.135mm
- Optimum power transfer
- Iconic design
- Adapted for race specific disc brake system
- Rider tuned gearing options
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Review Shimano FC R9100 11s 52T 52-36T Chainring