With their special tooth profiles, recording pens and climbing aids the Dura Ace FC-R9100 chainrings enable a particularly soft and fast switching operation. So is with them a load switching, how it was normally only used by the derailleur, without any problems. Your construction carbonfaserverstäkten plastic with aluminum teeth helps to keep the weight low, while increasing the torsional rigidity. Also contributes to the hollow profile of the large chainrings.
Group: Dura Ace FC-R9100 11-speed
Suitable for: FC-R9100
Bolt Circle: 110mm
Gear arms: 4-arm
Gradation: Type MS (for 50-34T)
Shipping takes 2-3 working days. You will receive an email confirmation when your order is completed.