Description
Product features
- Use: Road
- Group: Dura Ace
- Model: CS-R9100
- Type: HG-EV
- Gear: 11-speed
- Teeth: 12-28
- Compatible chain: HG-EV 11-speed, HG-X 11-speed
- Gradation: 12-13-14-15-16-17-19-21-23-25-28 teeth
Material
- Spider arm: Carbon
- Sprockets (7-11): Titanium
- Spockets (1-6): Steel
- Lock ring: Aluminum
Weight
- 205g (manufacturer information)