SUMC Bicycle Chain

Variations: 1. S99 - 9 Speed Silver 2. SX9 - 9 Speed Gold 3. SX9EL - 9 Speed Silver Semi-Hollow 4. SX9EL - 9 Speed Gold Semi-Hollow 5. SX10 - 10 Speed Silver 6. SX10EL - 10 Speed Silver Semi-Hollow 7. SX10EL - 10 Speed Gold Semi-Hollow 8. SX10EL - 10 Speed Rainbow Semi Hollow 9. SX11 - 11 Speed Silver 10. SX11EL - 11 Speed Silver Semi-Hollow 11. SX11EL - 11 Speed Gold Semi-Hollow 12. SX12 - 12 Speed Silver 13. SX12EL - 12 Speed Rainbow Semi Hollow 14. SX11SL - 11 Speed Gold Full Hollow 15. SX12SL - 12 Speed Gold Full Hollow Vacuum Coated The robust, colorful coating is wear-resistant and anti-corrosive, so your rainbow chain will last longer. Double “X” bridge-shaped outer plate The outer plate design lets you shift smoothly between gears and get better power transfer. Semi-hollow design SUMC’s mid-level EL series chain is semi-hollow with a lighter weight and excellent power transfer.