KLE 500 1991 - 2007. ZRX 1100 1992 - 2000. Ninja 600R 1990 - 1996. GPZ 500 S 1994 - 2009. Ninja 250R 1990 - 2007. Ninja ZX-11R 1993 - 2001. Early model OEM keys have the key number stamped on them. Is your existing key blade cracked, bent, snapped or simply looking for a spare?.