Flattop technology is so much more than a distinctive look. It allows SRAM's 12-speed chain to be lighter, stronger and more durable than anything that came before. The Apex chain uses the same construction as the Rival and Force chains, with a polished gray finish. Features-Optimized for use with SRAM's Apex 12-Speed drivetrain-Flattop technology allows for a narrower chain with quieter operation and increased strength and durability-Includes Flattop PowerLock connector-Chrome Hardened pins provide additional durabilityItem Specifications-Chain Connection Type:Single Use Master Link-Color:Gray-Defined Color:Gray-Drivetrain Speeds:12-Half Link Chain:No-Links (links):120