SHIMANO Dura-Ace FC-R9100 Crankset Left Crank Arm

SHIMANO Dura-Ace FC-R9100 Crankset Left Crank Arm

It does this through a broad Hollowtech II arm which sets the highest standards for stiffness and lightness.
Spindle Interface Type: Hollowtech II

The following are a "B" match which indicates that the parts are usable, but differ in materials, appearance, finish, size etc.

-FC-9000

Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.