1. Nickel-chromium-plated high-tensile steel sheet, hollow design
2. Imported steel, high strength, light weight and wear resistance
3. Smooth speed change, integrated molding
4. Easy to install, not easy to rust
5. Material: high strength steel plate
6. Speed: 8-speed, compatible with Shimano, SRAM (SRAM xd is not compatible)
7. Tooth: 11-13-15-17-21-24-28-32T
8. Weight: 313g