Shimano, Dura-Ace FC-09, Crankset, Speed: 11, Spindle: 24mm, BCD: 110, 34/50, Hollowtech II, 170mm, Black, Road, IFC09CX04A

Description

The choice of the world's best climbers, sprinters, and time trialists, the DURA-ACE R9100 crank drops weight while maximizing power transfer. The new design, and its iconic look, is adapted for race specific disc brake systems while still offering a wide range of gearing and crank arm length options.