Shimano Dura Ace FC-R9100 chainring
Shimano 9100 Hollowtech II chainring.
Features
- Redesign the gear teeth profile to fit wider gear pitch.
- Rider tuned gearing options.
- 4-arm construction crankset.
- Maintains high rigidity and reduces weight.
- Iconic design.
- Chain Line: 43.5 mm.
- BCD: 110.
- Real weight: 24 g (34T), 31 g (36T), 105 g (50T), 109 g (52T), 108 g (53T).