The Shimano SLX CN-M7100 12-speed chain is optimized for use with the SLX M7100 MTB drivetrain system. Extended inner plate improves chain engagement and retention Reduced shift times and pedaling shock Non-reusable Features Shimano’s SIL-TEC ultra-low friction surface treatment Includes Shimano Quick-Link (SM-CN910-12) This chain meets durability requirements for E-MTB applications SPECIFICAITONS Color: Silver Chain Connection Type: Single Use Master Link Half Link Chain: No Links: 126 Designed for ebike: Yes Drivetrain Speeds: 12 Defined Color: Silver Weight: 252