Shimano Dura-Ace R9100 42t 110mm 11-Speed Chainring for 42/54tThis Shimano chainring allows you to update your Dura Ace FC R9100 11 speed crankset with a chainring configuration to best fit your riding style. Product Details: Features a weight saving 4 bolt design with a BCD of 110 mm 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 Specifications: Chainring BCD: 110
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Shimano Dura-Ace R9100 42t 110mm 11-Speed Chainring for 42/54t