2007 Kawasaki KX450F, Just had carb clean and full service - VETTED IN THE FIRES OF COMPETITION, NEW VERSION HONES WINNING EDGE. Kawasaki enhances the dynamic excellence of its world championship winning KX450F motocrosser with a new five-speed gearbox plus a host of engine and chassis refinements aimed at increasing its domination over the competition. The 2007 KX450F offers all the dirt-shredding power from last year s motorcycle, with enhanced bottom end and midrange thrust for even quicker acceleration from the starting gate and stronger drive out of corners. This revised engine tuning is coupled with a new five-speed transmission to allow greater flexibility in gear selection and increase the rider s options in difficult rhythm sections. Never one to rest on its laurels, Kawasaki also lavished attention upon the KX450F s frame and suspension. With reduced frame spar rigidity, new fork internals, and the industry s first diamond like carbon (DLC) coated fork tubes, the 07 KX450F boasts improved rear wheel traction and suspension action to improve handling, maximize acceleration and offer easier line selection when passing the competition. The new KX450F will be available in Kawasaki lime green, with a new colored surface treatment on wheel hubs and engine covers, and aggressive race team graphics.