Shimano Dura-Ace R9100 Chainring

No, this chainring is specifically engineered for 11-speed Shimano Dura-Ace R9100 drivetrains. Using it with a 10-speed system will likely result in poor shifting performance and potential chain drop.

Hollowglide technology uses a hollow, high-rigidity structure to reduce weight while maintaining the stiffness required for efficient power transfer. This design helps the chainring resist flexing under heavy pedaling loads, which keeps your shifting crisp and responsive.

No, this chainring requires a 4-bolt mounting pattern. It is designed specifically for the Shimano R9100 series cranksets and will not mount to older 5-bolt configurations.

No, this is specifically designed as an inner chainring. The ramp and pin profiles are optimized for shifting from the inner ring to the outer ring, and the physical shape is not intended for the outer position.

No, mounting bolts are not included. You will need to reuse your existing R9100 chainring bolts or purchase a compatible set separately.