1. Material: Aluminum+bearing
2. Easy installation: Great replacement for your beloved bike.
3. Multiple protections: Protect your device on your next thrilling journey perfectly.
4. Ergonomic design: Specifically designed to eliminate pressure points on sensitive parts for optimal comfort while long time riding.
6. Outer diameter: 46mm inner diameter: 24mm (use conversion sleeve transform 24mm to 22mm)
7. Press Fit design fit for SHIMANO Prowheel SRAM GXP (use attached conversion sleeve)
8. BB length fit for 68-73mm length frame used.