This Shimano chainring allows you to update your Dura-Ace FC-R9100 11-speed crankset with a chainring configuration to best fit your riding style.

• Integrates Shimano Hollowglide Technology: the high rigidity hollow structure cuts down on weight, yet maintains strength to provide better power transfer and quicker, more precise front shifting
• Features a weight saving 4-bolt design with a BCD of 110 mm