SRAM Force AXS Chain - 12-Speed, 114 Links, Flattop, Silver - The SRAM Force AXS 12-speed Flattop Chain features a unique link shape that creates a lighter, quieter, and stronger chain.Compatible only with eTap AXS rear derailleursFlattop technology allows for a narrower chain with quieter operation and increased strength and durability Hard Chrome plated inner and outer plates allow for faster and more precise shifts Requires Flattop Powerlock