CRANKS SHIMANO DURA ACE FC-R9100

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

-Optimal power transfer.
-Better balance for lighter weight (-7 g) and efficiency.
-Newly designed crank arm.
-Maintains high stiffness and reduces weight.
-HOLLOWGLIDE.
-4-arm crankset.
-Adapted for race-specific brake system.
-Shorter rear center length with OL.D. of 135 mm.
-Redesign of gear teeth profile to suit wider speed range.
-Customizable gear options.
-Iconic design.