SHIMANO Dura Ace Crank 2-speed FC-R9100
The lightest and most reliable Shimano crank
The new Dura Ace crankset is characterized by a very high switching performance. The gear changes take place with high precision.
This is achieved through its wider HOLLOWTECH II arm and a reinforced outer chainring on its unique asymmetric spider construction with four arms. In terms of rigidity and lightness, the new R9100 cranks meet the highest standards.
Material crank arms: aluminum
Material axle : steel
Material chainrings: aluminum / carbon composite
Technology crank: Hollowtech II
Technology Chainrings: Hollowglide
Crank lengths: 170.0mm / 172.5mm / 175.0mm / 180.0mm
bolt circle diameter diameter: 110 mm
chain line : 43.5 mm
Q-factor: 146 mm
Number of teeth of the chainrings: 50-34, 52-36 or 53-39 teeth
Bottom Bracket Compatibility: BB-R9100 BSA / ITA or SM-BB92-41B (optional, not included)
Compatibility Chains: Shimano HG-EV 11-speed , HG-X11
Delivery: 1x Crankset Dura Ace FC-R9100 including chainrings without bottom bracket.