Shimano Dura-Ace 9000 52t 110mm 11-Speed Chainring for 36/52t ModelNumber=H3249 Electronically-driven gearbox moves the cage

Electronically-driven gearbox moves the cage precisely for superior shifting accuracy

Rattle-free USH bracket included

Top-of-the-line rear derailleur with generous use of carbon fiber and titanium for maximum performance at minimal weight

The shirt features shoulder and rib protection featuring our impact-absorbing SmartFlex padding for world-class protection without sacrificing fit and comfort

Shimano Dura-Ace 9000 52t 110mm 11-Speed Chainring for 36/52t ModelNumber=H3249 Electronically-driven gearbox moves the cageShimano Dura Ace 9000 52t 110mm 11 Speed Chainring for 36 52t. This Shimano chainring allows you to update your Dura Ace FC 9000 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