Shimano Dura-Ace CS-R9100 11/30 11v CassetteThe new DURA-ACE is the answer to the question of many professionals and ambitious hobbyists if and how the current, already immensely high level of performance could be further increased. Each of the DURA-ACE R9100 components is designed to work together with all other system components with maximum efficiency. Shimano Dura-Ace CS-R9100 11/30 11v CassetteThe new DURA-ACE is the answer to the question of many professionals and ambitious hobbyists if and how the current, already immensely high level of performance could be further increased. Each of the DURA-ACE R9100 components is designed to work together with all other system components with maximum efficiency. This is where the core of Shimano's philosophy of components developed as a system becomes particularly clear. The result is SYSTEM SUPREMACY - the superiority of the system over the sum of the individual parts.Dura Ace CS-R9100 CassetteWith SHIMANO's rider-adjustable cassette sprockets, the DURA-ACE R9100 offers gear combinations to suit your riding style and the terrain of your choice. The lightweight 11-speed cassettes are available in various sprocket combinations. Quick, precise and smooth shifting is guaranteed in all situations.

• "Rider Tuned"
• Wider gear range: 11-28Z/12-28Z
• Narrower Gear Range: 11-25Z/12-25Z
• Light
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Characteristic:

• 11 sprockets
• Weight: 175g
• Available on: 11/30, 11/25, 11/28, 12/25