The ZZ-R1100 or ZX-11 is a sport bike in Kawasaki's Ninja series made from 1989 to 2001, as the successor to the 1988–1990 Tomcat ZX-10.

With a record top speed of 272–283 km/h (169–176 mph), the ZX-11 was the fastest production motorcycle for six years, from its introduction in 1989 through 1995, when it was surpassed by the 1996 Honda CBR1100XX.

It was much anticipated since the Suzuki GSX1300R Hayabusa held the title for fastest production bike when it was introduced in 1999.

European governments threatened to ban high speed motorcycles, leading Kawasaki to de-tune the ZX-12R prior to its release.

[4][11][12][13][14] Starting at the very end of 1999, a gentlemen's agreement between larger European and Japanese manufacturers has limited production motorcycle top speeds to 300 km/h (186 mph),[4][11][1] In 2002 the Kawasaki ZZ-R1200 was released, which is a sport tourer and more akin to the ZX-11.