Features 1、High Sensitivity: Quickly capturing the shifting action, double X bridge design chain piece, the winding point is sensitive and smoother, and the operation is smoother and more stable. 2、High Rigidity: Colorful bike chain's built in shaft has high fitting force and strong pulling force, faster response rate and higher transmission rate to reduce power transmission loss. 3、Carbon Steel: Quenching heat treatment, impact resistance, new structure integrated stamping, high rigidity forging process can withstand high strength instantaneous explosive force, greatly enhancing service life. 4、Color Plating: Bike variable speed chain adopts color plating, which is anti pollution, anti corrosion, anti rust and anti fading, effectively reducing the number of maintenance. 5、Wide Compatibility: Variable speed chain is fully compatible with 3 mainstream transmission systems and other mashup systems. Specification Item Type: Bike Colorful Variable Speed Chain Material: Carbon Steel Speed: 10 Speed Package List 1 x Bike Colorful Variable Speed Chain 2 x Hook and Loop