'KMC BMX Chain Z410 narrow material: Chromium Molybdenum, heat treated, nickel plated Type: Vollgliedkette chain links: 112 Size: 1/2 "x 1/8 (W) Weight: Approx. 373g (100 links) Colour: Red Top Price/Performance. KHEbikes was founded in 1988 by brothers Thomas and Wolfgang Göring in Karlsruhe. This makes it the oldest German BMX company. For over 25 years, the name KHEbikes For innovation.