Shimano Ultegra FC-R8100 chainrings are constructed with high quality aluminum and are compatible with FC-R8100 and FC-8100-P 2x 12-speed cranksets.
- Asymmetric 110 BCD
- Compatible with HG 12-speed chains
- Aluminum with anodized finish and carbon fiber reinforced plastic for extreme durability and light weight
- Hollowglide technology provides high rigidity and cuts down on weight while maintaining strength
- Offers better power transfer and quicker, more precise front shifting
- 52t outer chainring is for use with 36t inner chainring