Shimano Dura-Ace R9100 42t 110mm 11-Speed Chainring for 42/54t CheckoutTitle=Magura MT8 SL Disc Brake Caliper - Front or Rear } Lug pattern designed to

} Lug pattern designed to give greater progressiveness

Premium S2 tool steel bits chrome vanadium sockets and precision laser cut tool steel crowfoot ensure strength and lasting performance

}Shimano BMR1 and BRM2 Di2 External Battery Mount Base Unit A

}Shimano Tiagra FC-4703 Crankset - 170mm 10-Speed 50/39/30t 110/74 Asymmetric BCD Hollowtech II Spindle Interface Gray

9 Alloy Tubeless Valves - Pair 40mm Golden

Shimano Dura-Ace R9100 42t 110mm 11-Speed Chainring for 42/54t CheckoutTitle=Magura MT8 SL Disc Brake Caliper - Front or Rear } Lug pattern designed toShimano Dura Ace R9100 42t 110mm 11 Speed Chainring for 42 54t. This 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