Shimano FC-R9100 Dura Ace Chainring – 42t

##Shimano FC-R9100 Dura Ace Chainring – 42t For use with 11 speed Dura-Ace 9100 series double chainsets; the four-arm Shimano FC-R9100 Dura Ace Chainring 42t is specifically designed to work with the FC-9100 55-tooth Dura-Ace outer chainring to give fantastic shifting every time. This premium component is machined out of aluminium for low weight; rigidity and efficient power