To meet even the highest demands, KMC has designed the chains of the X-Series with the specific characteristics of Shimano, SRAM and Campagnolo drivetrains in mind. The outstanding property is the Double X-Bridge construction with precisely manufactured plates that feature dynamically chamfered edges. The result are gear changes that border on perfection and maximum smoothness.

The silver version of the X12 chain also has a nickel plating, which provides greater corrosion resistance, durability and surface hardness.