Brand New! Pro Taper 520MX Pro Series Gold Chain - 120 Links Utilizing a newly developed manufacturing technique never-before seen in the offroad chain market, ProTaper Pro Series chains feature innovative forged pin collars that have been seamlessly incorporated into the outer chain plate. By cold-forging pin collars to encase the chromium carbide layered pins, outer chain plate thickness can be slimmed to reduce weight while increasing tensile strength.