Shimano FC-9100 Dura Ace Crankset 2x11 Speed Crank Arm Length:175mm 40mm diameter

40mm diameter

to use a standard nose width saddle

With its durable construction

internal cable routing

Shimano FC-9100 Dura Ace Crankset 2x11 Speed Crank Arm Length:175mm 40mm diameter4 arm construction cranksetNew designed crank armIconic designRedesign the gear teeth profile to fit wider gear pitchHOLLOWGLIDEBest balance for lighter weight ( 7g) and efficiencyShorter length of rear center with O. L. D. 135mmOptimum power transferAdapted for race specific disc brake systemMaintains high rigidity and reduces weight OUTER RING MATERIAL Aluminum CFRP AVERAGE WEIGHT 609g, ,621g THREADED BB SHELL WIDTH 68,70 CRANK ARM FINISH Anodized