changes to the ZX-6R

With competition from Honda's CBR600F4i, Suzuki's GSX-R600, and Yamaha's YZF-R6 effort solon ambitious, Kawasaki definite to puddle an peculiar propose for the 2003 possibility period. They magnified the susceptibleness of the conventional 600 cc (37 cu in) motorial to 636 cc (38.8 cu in). For riders who required bikes for displacement-restricted racing, Kawasaki also prefab addressable a specific creation 599 cc (36.6 cu in) variation titled the Ninja ZX-6RR, but the 636 solid centimetres (38.8 cu in) ZX-6R would be their principal volume creation middleweight sportswoman cycle.

In 2003, there were a symbol of changes to the ZX-6R, or ZX636 as it is oft referred. The engine was now fuel injected and engine modify was increased around 500 rpm which resulted in a slim earn in nation. Radial-mounted four-piston brakes replaced the old six-piston brakes and the strawman forks were now inverted. Chassis improvements resulted in higher inelasticity and lower weight. An all digital helper commission was also introduced and a larger ram air water emotional to the confectionery over the headlamp, functional finished the headstock. The bike carried over to the 2004 example gathering with upright colourise scheme changes. The ZX-6RR won the Supersport category subsidization for Masterbike 2004 and set third gross.