1. Material: Aluminum+bearing  
2. Easy installation: Great replacement for your beloved bike.  
3. Multiple protections: Protect your device on your next thrilling journey well.  
4. Ergonomic design: Specifically designed to eliminate pressure points on sensitive parts for good comfort while long time riding.  
6. Outer diameter: 34.798mm, inner diameter: 30mm.  
7. Press Fit design, fit for SRAM, FSA, Rotor, Raceface  
8. BB length fit for 68-73mm length frame used.