Shimano Dura-Ace R9100 55t 110mm Chainring for 55-42t Model=Nipple Drivers 25 Tubeless Folding Black Racing

25 Tubeless Folding Black Racing Line GUM-X Cross Shield E-Bike

Promax E1 Endurance disc rotors are designed to handle the rigors of all-mountain riding and e-bikes where extra strength is required

active Carbon moisture wicking

Color Black Primary Color Black Wheel Diameter 26

Defined Color Gray Weight 67 Brake Lever Use Left Brake Lever Use Right Brake Lever Actuation Long Pull Color Gray Cable Head Type Mountain

Shimano Dura-Ace R9100 55t 110mm Chainring for 55-42t Model=Nipple Drivers 25 Tubeless Folding Black RacingShimano Dura Ace R9100 55t 110mm Chainring for 55 42t. 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 of 110 mm