Product Overview
Shimano's R9100 series crank arm achieves the ultimate in optimal power transfer. It does this through a broad Hollowtech II arm which sets the highest standards for stiffness and lightness.
- Spindle Interface Type: Hollowtech II
Shimano's R9100 series crank arm achieves the ultimate in optimal power transfer. It does this through a broad Hollowtech II arm which sets the highest standards for stiffness and lightness.
- Spindle Interface Type: Hollowtech II
