The Flattop technology of the SRAM Rival 12-Speed chain creates a lighter, quieter, stronger chain that’s compatible with 12-speed 1x and 2x eTap AXS road drivetrains. Ride far, long and fast his chain can go the distance. Flattop technology allows for a narrower chain with quieter operation and increased strength and durability no matter the SRAM road 12-speed cassette cog range or chainring set-up.

The Flattop chain design can't be safely used with so-called Mullet drivetrains that feature Eagle 12 mountain rear AXS derailleurs or cassettes. For those 1x12 super-wide range systems, any version of the Eagle 12-Speed chain can be used.