GSX-R Models are often referred to using their model codes W,Y,K1. These can be useful when ordering parts or downloading manuals.
GSX-R 1986 - (G)
GSX-R 1987 - (H)
GSX-R 1988 - (J)
GSX-R 1989 - (K)
GSX-R 1990 - (L)
GSX-R 1991 - (M)
GSX-R 1992 - (N)
GSX-R 1996 - (T)
GSX-R 1997 - (V)
GSX-R 1998 - (W)
GSX-R 1999 - (X)
GSX-R 2000 - (Y)
GSX-R 2001 - (K1)
GSX-R 2002 - (K2)
GSX-R 2003 - (K3)
GSX-R 2004 - (K4)
GSX-R 2005 - (K5)
GSX-R 2006 - (K6)
GSX-R 2007 - (K7)
GSX-R 2008 - (Uh...K8?
)