KX450

KX450 is Kawasaki’s flagship full-size motocross nameplate as marketed for the 2019 model year, when the company introduced a thoroughly revised bike and dropped the earlier “F” suffix from the model name. Kawasaki’s official 2018 launch announcement describes the new machine as the 2019 KX450F, while also stating that the new KX450 would be sold in multiple markets, showing the transition point for the nameplate. Since then, Kawasaki has continued to market the model as KX450 in its current lineup. The bike sits at the top of Kawasaki’s KX motocross family and is positioned as the company’s premier race-oriented 450-class machine, carrying forward the brand’s championship-focused off-road heritage. The nameplate is strongly associated with factory-race development and has become the modern replacement for the KX450F branding that preceded it.