The new DURA-ACE is the answer to the question asked by many professionals and ambitious amateurs as to whether and how the current, already immensely high level of performance could be further increased. Each individual DURA-ACE R9100 component is designed to work with all other components of the system as efficiently as possible. This shows the core of Shimano's philosophy of the components developed as a system particularly clearly. The result is SYSTEM SUPREMACY - the superiority of the system over the sum of the individual parts.

- Area of use: Road
- Installation type: Screwed
- Case Width: 68mm
- Axle diameter: 24 mm (Hollowtech II)
- Weight according to the manufacturer: 65g

Compatibility:
- Shimano Hollowtech II cranks
- Dura Ace cranks

(Translated with Google Translate)