CeramicSpeed Oversized Pulley Wheel System with Coated Bearings Shimano 10/11-Speed Black Pulleys and Black Cage

The system is compatible with Shimano 10 and 11 speed.

- High quality bearings have 3-5 times greater longevity than commonly used pulley wheels on the market
- Aluminum Pulley Assembly / Carbon Cage
- 17-tooth aluminum pulley wheels