Shimano Dura-Ace 9000 52t 110mm 11-Speed Chainring for 36/52t ModelNumber=H3249 Includes Stans No Tubes 29mm

Includes Stans No Tubes 29mm rim tape (installed)

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

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

Rattle-free USH bracket included

Reflective elements

Shimano Dura-Ace 9000 52t 110mm 11-Speed Chainring for 36/52t ModelNumber=H3249 Includes Stans No Tubes 29mmShimano 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