This is the most complete motocross package we’ve ever created. And it’s also the first production bike that allows you to connect wirelessly and dial in your own customized engine settings – and maximize your winning potential. The new lightweight electric start saves vital seconds when you’re under pressure – and the reverse head engine gets a new high compression top end and optimized ECU for even stronger race winning power. With its new lightweight frame and refined suspension, this YZ450F gives you improved stability and agility over whoops and through corners. And its slim and compact new bodywork delivers total rider agility combined with factory bike looks.