Buy 2003 2004 Kawasaki Ninja ZX6R fairings today! The Kawasaki Ninja ZX6R or simply known as Kawasaki Ninja is a series of 600 class sport bike that was first introduced in 1995 by Kawasaki motor company itself. It was the first middleweight sport bike with an aluminum frame that weighed over 401.2 lb (182.0 kg). In 2003, Suzuki made a major updates of Kawasaki Ninja ZX-6R version model with engine specs of 636 cc (38.8 cu in), 4-Stroke, Liquid-Cooled, DOHC, 4 Valve Cylinder Head and Transverse In-Line 4-Cylinder. Due to its changes the engine speed also increases up to 500 rpm and many motorbike owners love the improvements of its chassis that resulted in higher rigidity and less weight with additional upgrades on its physical look.