Shimano Dura Ace FC-R9100 chainrings

The new Dura Ace from Shimano is the answer to the question many professionals and ambitious amateurs have about whether and how the already incredibly high level of performance can be further enhanced. Each individual Dura Ace R9100 component is designed to work as efficiently as possible with all other components of the system. This clearly demonstrates the core of Shimano's philosophy of system-engineered components. The result is called System Supremacy - the superiority of the system over the sum of its parts. Shimano Dura Ace chainrings for Dura Ace FC-R9100 Hollowtech II crankset. • Details: - Compatible with FC-R9100 crankset • Material: Aluminum • Application: Road bike • Compatibility: 11-speed derailleur • Front shifting stages: 1-speed • Rear shifting stages: 10-speed chainrings • Mounting / Number of holes: 4 screws • Bolt circle: 110 mm.