2014 Kawasaki KX450F, VERY LOW HOURS. ALL STOCK. - Climb Aboard a Motocross Dynasty It’s no wonder that Kawasaki’s KX 450F has amassed an enviable championship record in AMA Supercross and AMA Motocross. Having a great rider definitely helps, and Monster Energy Kawasaki’s Ryan Villopoto’s credentials are impeccable, including double-up titles in AMA Supercross and Motocross titles in 2011, followed by another AMA Supercross title in 2012. And in 2013, Villopoto made it three straight Supercross championships in a row, becoming the first rider to win back-to-back-to-back AMA Supercross titles since the great Ricky Carmichael, another rider whose career blossomed aboard Team Green machines.