2013 Kawasaki KX 85, The KX 85 has a liquid-cooled, two-stroke, 84cc engine and a lightweight Electrofusion-coated cylinder that improves heat transfer while resisting abrasion and seizure. As well as a Power-valve System that varies exhaust port height for increased horsepower, and Uni-Trak® rear suspension which is adjustable for compression, rebound damping and spring preload. When the time comes for every budding motocross racer to decide that being a winner is why he or she races, then the next step is obvious. Throwing a leg over the KX 85 not only carries Kawasaki s motocross heritage with it, but speaks volumes about how serious the racer is about taking the checkered flag.