2012 Kawasaki Ninja 250R, NO ADDITIONAL FEES ON PRE-OWNED INVENTORY. 2012 Kawasaki Ninja 250R #1 Selling Sportbike in the U.S. Offers Superior 250 Performance With its smooth power delivery, low seat height, and excellent value, the Ninja 250 has all the vital elements to make it the perfect first sportbike. Powered by a compact liquid-cooled twin-cylinder engine, this Ninja sportbike pleases b...