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Shimano Dura-Ace FC-R9100 | Crankset
Description
- 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