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.
