KMC E-Bike Chains. Features: Feature better durability and higher pin power to stand up to the high torques of an E-Bike motor Stretch Proof Treatment, High Torsion Resistance, and Triple X Durability are featured on all E-Bike chains Triple X-Durability Non-Directional Anti Rust EcoPro Teq coated Compatible with 11-speed systems Specifications: Speeds: 11 Speed Links: 126 Chain Width: - Chain Connector: Master Link (Single Use) Pin Type: Solid Color: Grey Weight: - Included: Single use Master link