2011 Kawasaki KX250F, 2011 Kawasaki KX250F - More AMA Lites championships than any motorcycle in history! It s an old refrain: The factory guys get all the good stuff. Their bikes are faster, lighter and just plain tricker than the motocrossers you can buy off the showroom floor. There s some truth there. But that s changing. The gap between production and factory-prepped motocrossers has never been narrower. And with the introduction of Kawasaki s massively reworked 2011 KX 250F, that gap just shrank a little more.