The Flattop technology of the SRAM Rival chain creates a lighter, quieter, stronger chain that&&';;s compatible with 12-speed 1x and 2x eTap AXS drivetrains. Ride far, long and fast - this chain can go the distance 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 PowerLock Compatibility: 12 speed road Link Finish: Nickel Chain Connector: PowerLock D1 Length: 120 links Pin: solid pin