The Flattop technology of the SRAM Rival chain creates a lighter, quieter, stronger chain that compatible with 12-speed 1x and 2x eTap AXS drivetrains. Ride far, long and fastthis chain can go the distance.Features-Flattop technology allows for a narrower chain with quieter operation and increased strength and durability-Use for both 1x and 2x eTap AXS-Includes Flattop PowerLockItem Specifications-Color:Silver-Half Link Chain:No-Drivetrain Speeds:12-Defined Color:Silver-Links (links):120-Chain Connection Type:Single Use Master Link