BlackChili Compound for class-leading grip and low rolling resistance
7g (Rear Regular Mount w/o pads)
Available in multiple gearing options
Using a carbon fiber and alloy spider and five titanium sprockets
Directly from the wind tunnel to the market
Shimano Dura-Ace FC-R9100 11 Speed Crankset Size:165mm BlackChili Compound for class-leading gripThe choice of the world's best climbers, sprinters and time trialists, the Shimano Dura Ace FC R9100 11 Speed Crankset drops weight while maximizing power transfer. The 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. Specifications Lengths: 165mm, 167. 5mm, 170mm, 172. 5mm, 175mm Combinations: 55 42T, 54 42T, 53 39T, 52 36T, 50 34T Chainline: 43.