Shimano Dura Ace FC-R9100 Crankset 11s

Accommodates frames with shorter chainstays (410mm) and 135mm rear spacing

New designed crank arm maintains high rigidity provides optimum power transfer and reduces weight

4-arm construction crankset

Adapted for race specific disc brake system

Redesign the gear teeth profile to fit wider gear pitch

Hollowglide construction Maintains high rigidity and reduces weight

Shorter length of rear center with O.L.D.135mm

Redesigned gear teeth profile fits a wider gear pitch