The KMC X12 Chain is a versatile chain that is compatible with all leading derailleur systems, any type of bike, and 1x, 2x, or 3x drivetrains. Whether you run a Shimano, SRAM, or Campagnolo 12-speed system, the X12 will perform at a high level. It is very lightweight and promotes the smoothest possible gear changes with an asymmetric design. This version comes with a limited edition aurora oil slick colorway. If you are looking for a versatile 12-speed chain, the KMC X12 is an excellent choice.