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.
