Shimano Hard Gearbox Ace R9100 11V

Dura Ace 9100 rear gearbox completely redesigned, now of the "Shadow" type inspired by MTB technologies. The 11-speed Dura Ace gearbox has been redesigned to be lighter and faster with the help of friction- basso polymer-coated cables. This new derailleur also features direct mounting, offering both a stiffer base for improved shifting and minimising the chances of chassis damage in the event of a fall.

• Extremely stable shifting performance.
• Construction Shimano RD.
• Less exposed profile to limit damage in the event of a fall.
• Improved chain guide pulleys.
• Rear derailleur with low profile.
• Specific design for racing frames.

Features

• Series: Dura-Ace.
• Maximum cassette teeth: 30D (short cage SS).
• Minimum dentition: 11D.
• Maximum front difference: 16D.
• Total capacity: 35D.
• Real weight: 161 g