- Newly designed outer and inner plates for better contact with gear teeth.
- New shaped outer plate for less chain suck.
- Smoother shifting, even under high-load shifting.
- Higher pedaling efficiency (0.6% better compared to 7800), and silent pedaling for less stress.
- Hollow pin and perforated plate for weight savings.
- Enhanced parts size around the pin result in less flex when shifting.
- Uses a pin for a consistent, secure connection.
- Manufacturer # CN-7901.
- Width 6.1mm.
- 251 grams