Kawasaki ZX-6R MotorcyclesKawasaki ZX-6R MotorcyclesKawasaki ZX-6R MotorcyclesKawasaki ZX-6R MotorcyclesAfter several years of offering their 636 cc ZX-6R for street use and an entirely separate 599 cc ZX-6RR for displacement-restricted racing classes, Kawasaki offers only one ZX-6R for 2007, and it displaces 599 cc. Kawasaki Motorcycle also made available a limited production 599 cc (36.6 cu in)