The only news perhaps bigger than the arrival of Kawasaki's all new KX250 is the announcement that the KF450F will not be making its debut in 2005. The KX250 remains Kawasaki's motocross weapon of choice, and it has arrived in '05 with major changes from plastics to piston. We're bummed we didn't get to see the KX450F this year, but Kawasaki's commitment to developing KX250 race technology paints a bright future for two-strokes.
The most dramatic changes to the KX250 are the engine, chassis, and front suspension. Kawasaki hasn't gone to aluminum yet; the 2005 features an all new lightweight steel perimeter frame. The most noteable change in the chassis is the decrease in steering rake from 27° to 26°. Coupled with the narrower frame, the 2005 KX should have improvements to its steering and cornering. The 249cc motor includes an all new KIPS® system resulting in smoother, more linear power, and the front suspension is changed with new twin-chamber Kayaba forks. The rider ergos received some improvements, too with a new seat, revised handlebar bend and higher footpegs.
Overall, the KX is a completely new machine with some exciting changes. To read more about the Kawasaki KX250 and other 2005 models, pick up a September issue of Dirt Rider Magazine.