SRAM'S 10-speed PowerChain features the PowerLock connecting link for secure tool-less attachment. Compatibility extends to industry-standard 10-speed systems. For all road and mountain bike drive trains. PowerLock non-reusable connecting link is included Compatible with SRAM and Shimano 10-speed drive trains SPECS : Links (links): 114 Chain Connection Type: Single Use Master Link Color: Silver Width: 5.95 Half Link Chain: No Drivetrain Speeds: 10 Defined Color: Silver Weight: 257