About Kawasaki Ninja 250R Motorcycles - The Kawasaki Ninja 250R sportbike entered the American market in 1986 and quickly became Kawasaki’s best selling bike. The Kawasaki Ninja 250R was modified in 1988 and, as a testimony to its popularity remained relatively unchanged until 2008. In 2008, the Kawasaki Ninja 250R sportbike took the public by storm with an updated contemporary body makeover. The transformation didn’t stop there. This Kawasaki Ninja 250R sportbike also received major engine modifications, a more efficient cooling system, 17” wheels, wider rims, suspension changes, chassis improvements, and better steering geometry. With its lightweight and forgiving nature, it’s not hard to understand why the Kawasaki Ninja 250R continues to be a favorite.