Shimano IFCR9100FX04 FC-R9100 Dura-Ace Crankset - Avayadevconnect

Bigger and bulkier, but lighter and stiffer, the Shimano Dura Ace R9100 Crankset is the crown jewel of Shimano's 9100 Dura Ace group. A proprietary 110mm bolt circle diameter covers all chainring configurations. This allows Dura-Ace 9100 crank owners to use the same crank for any chainring configuration. From 50/34 compact all the way to 55/42 time trial chainring setups, all you will need to make the switch away from the stock setup is a new set of rings. 9100-generation rings are also engineered for precise shifting on bikes with disc brakes, which have wider, 135 millimeter-spaced rear dropouts. Even though the 9100 cranks have a bulkier appearance then 9000, they are slightly lighter and noticeably stiffer. Wider spider arms make 9100 crank arms and 9000 rings incompatible. Launch your attack with the Shimano Dura Ace R9100 Crankset.