Shimano Dura-Ace R9100 42t 110mm 11-Speed Chainring for 42/54t CheckoutTitle=Magura MT8 SL Disc Brake Caliper - Front or Rear }Shimano Tiagra FC-4703 Crankset -

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

} Ratchet EXP (36t unless noted) features a fused threaded ring/ratchet and single spring

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

Park Tool's CP-1

Shimano Dura-Ace R9100 42t 110mm 11-Speed Chainring for 42/54t CheckoutTitle=Magura MT8 SL Disc Brake Caliper - Front or Rear }Shimano Tiagra FC-4703 Crankset -Shimano 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