From the 1984 NINJA® 900R – the world’s first production 16-valve, liquid-cooled, in-line four-cylinder motorcycle – to the 2003 NINJA® ZX-9R sportbike, Kawasaki is continually extending its performance heritage. In a single 404-pound package, the ZX-9R delivers awesome engine response, precise handling, modern-day versatility and open-class performance matched by no other open-class sportbike on the market.