1. Bicycle cassette freewheel Protection Cover, made by high quality plastic.
2. Suitable for disc brake cassette hubs, not suitable for V brake hubs.
3. High Stength, not easily broken, long life use.
4. Light weight, tea color transparent, suitable for mountain bikes, road bicycles.
5. Prevent the chain from falling to the back of the flywheel and reduce the sand thrown on the flywheel.
Outer diameter: 155mm
Suitable for disc brake cassette hubs, not suitable for V brake hubs