After months of speculation, the 2013 Kawasaki motocross bikes are finally here, and there are some interesting changes on the table. Kawasaki continues to innovate with a handful of revisions to both their 250 and 450 motocross machines, with the biggest news surrounding the KX450F’s new fork. For 2013, the Kawi 450 receives a Kayaba air fork that utilizes pneumatic technology to provide better damping and control, thus saving weight by doing away with the main fork spring. Along with the lighter weight come tuning benefits and reportedly better damping action, particularly near the bottom of the stroke. The bike also gets a handful of internal changes and still features Kawasaki’s Launch Control technology, and several Digital Fuel Injection maps are available and can be changed without the use of a personal computer.