Dura-Ace R9100 11-Speed Element The motor’s responsive torque curve

The motor’s responsive torque curve delivers power perfectly in-tune with your normal riding cadence and leaves no resistance when you’re riding without power assistance

Assembly Method: Hand built at every step

enhancing your overall comfort

When mother nature turns on the faucet

Dura-Ace R9100 11-Speed Element The motor’s responsive torque curveThis 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