2007 Kawasaki Ninja 500R, Great Entry Level Sport Bike! - Efficient performance for the everyday rider Few motorcycle designs manage to balance a rider s need for performance, comfort and sportbike style as well as the Ninja 500R. Expert and beginning riders will appreciate the Ninja 500R s liquid-cooled, inline twin-cylinder four-stroke engine. With dual overhead cams actuating four valves per cylinder, the snappy motor is user-friendly and inspirational. Exploring the top end of this engine s rev range is entertaining for even the most seasoned riders. The high-performance engine isn't the only selling point for the Ninja 500R. On twisty back roads, the bike s lightweight, compact design makes for a great-handling machine. This is complemented by Kawasaki s Uni-Trak rear suspension system, with a progressive linkage similar to the larger-displacement Ninja models. The Ninja 500R also has the same sporty styling, which contribute to both form and function the aerodynamic half-fairing provides wind protection for the rider, and is stylishly complemented by a lower fairing.