The Kawasaki Z1000 is a four-cylinder motorcycle introduced in 2003 with streetfighter or standard styling. The Z1000 was first introduced in 1977 superseding the previous 903 cc capacity Z1/Z900.
Kawasaki introduced the Z1 (900) motorcycle in 1972 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.
In 2003 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. In 2004, Kawasaki released the Z1000's smaller brother, the Z750. In 2007, Kawasaki released a new Z1000.
In October 2009, Kawasaki unveiled the 2010 Z1000. It had a new aluminum frame, digital instrument panel, bodywork, and engine. Bore and stroke are 77 x 56 mm, 1 mm more than the ZX-10R's 76 x 55 mm displacing 1,043 cc. That is up from the previous model's 953 cc. Compression ratio is 11.8:1, and fuel injection is handled by a bank of 38-mm Keihin throttle bodies.
