2003 Kawasaki Z1000

As the first of the Kawasaki Z series, with four cylinders, dual overhead camshafts and 903 cc (55.1 cu in), followed by a 1015 cc version designated Z1000.

Superseding the previous 903 cc capacity Z1/Z900. Some countries like Australia and Thailand are still receiving current models of the Z1000 with Australia currently selling the new 2025 model.

With streetfighter or standard styling. The Z1000 was first introduced Kawasaki introduced a completely revamped 30-year anniversary edition of the Z1000. It used a modified engine from the Kawasaki ZX-9R, and was bored out by 2.2 mm resulting in bigger displacement, more low-RPM torque, and only a slight power loss of 4 bhp from the original ZX9.

Kawasaki released the Z1000's smaller brother, the Z750.

Kawasaki released a new Z1000. In October 2009, Kawasaki unveiled the 2010 Z1000. Kawasaki released an updated version of the Z1000. The bike features a detuned version of the ZX-9R engine.

. Along with the customary styling update came a slightly larger capacity engine.

Kawasaki broke with the 3-year update cycle and choose to release a "special edition" – alongside the standard edition – to mark the 40th anniversary of the Z brand. The differences between the models were purely aesthetic.

Making slightly more power; and front brake caliper are 4-piston monoblock. Also a big piston Showa separate function fork along with lighter wheels and a slightly larger gas tank.