Shimano Dura-Ace 9000 Chainring - 50 Tooth 11-Speed 110mm BCD For 50-34T Combination MFPN=BB 6900 LLU MAX BO-BAG 5" 170 mm 15 x

5" 170 mm 15 x 110 mm 44 mm Offset Matte Black GRIP Sweep Adjust

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Shimano Dura-Ace 9000 Chainring - 50 Tooth 11-Speed 110mm BCD For 50-34T Combination MFPN=BB 6900 LLU MAX BO-BAG 5" 170 mm 15 xShimano Dura Ace 9000 Chainring 50 Tooth 11 Speed 110mm BCD For 50 34T Combination. 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