Shimano Dura-Ace R9100 42t 110mm 11-Speed Chainring for 42/54t 210x52.5 Great moisture transport

Great moisture transport

} Wider 48mm cap for improved clamping

The Seatpost Clamp Titanium Bolt Hardware Upgrade Kit replaces the bolt and hardware that comes assembled with our seatpost clamp

Ventilation: excellent ventilation through 11 air inlets and 6 air outlets

Shimano Dura-Ace R9100 42t 110mm 11-Speed Chainring for 42/54t 210x52.5 Great moisture transportThis 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 Ring Position Type Inner Tooth Count 42 Drivetrain