2010 Kawasaki KLX250S, 2010 Kawasaki KLX 250 S - Built to get you there and back, pavement or not. When the pavement ends, the fun doesn?t have to stop if you?re riding the Kawasaki KLX250S. Lights, turn signals and all the other things you need to ride on the street are here, but the KLX250S?s heart belongs in the dirt. With its 249 cubic centimeter liquid-cooled single, long-travel suspension and rugged steel frame, this lightweight machine lets you access the best of both worlds.