This is the Shimano CN-HG701-11 Ultegra & XT 11-Speed Chain. This chain is compatible with all Shimano 11-Speed drivetrains but this is the Ultegra/XT level chain. Features: Directional 11-speed chain More efficient and silent, less maintenance SIL-TEC surface treatment MTB, Road, E-BIKE 11-speed compatible Reinforced chain for E-BIKE use New chain plate dimension Specifications: Speeds: 11 Speed Links: 126 Chain Width: 5.8mm Chain Connector: Quick Link Pin Type: Solid Color: Silver Weight: 257g (114 Links) Included: Quick Link Master Link