We're installing the SRAM Rival 12-Speed Chain on any of our eTap AXS bikes. This flat top chain is compatible with 1x and 2x eTap AXS systems, meaning we no longer need to spend all of our hard-earned dollars on premium chains. The Rival chain is coated with a long-lasting nickel and chrome finish, so with proper maintenance, we're getting thousands of klicks out of one chain.