Some aftermarket manufacturers make 18 tooth sprockets.
Dennis Kirk | Metric Bikes Main Page
This is a list of the Honda's that can use the same front sprocket.
Honda - CB1000 1994
Honda - CB1000 1995
Honda - CB1100F 1983
Honda - CB750C Custom 1980
Honda - CB750C Custom 1981
Honda - CB750C Custom 1982
Honda - CB750F Super Sport 1979
Honda - CB750F Super Sport 1980
Honda - CB750F Super Sport 1981
Honda - CB750F Super Sport 1982
Honda - CB750K 1979
Honda - CB750K 1980
Honda - CB750K 1981
Honda - CB750K 1982
Honda - CB750L 1979
Honda - CB750SC Nighthawk 1982
Honda - CB750SC Nighthawk 1983
Honda - CB900F Super Sport 1981
Honda - CB900F Super Sport 1982
Honda - CBR1000F 1990
Honda - CBR1000F 1991
Honda - CBR1000F 1993
Honda - CBR1000F 1994
Honda - CBR1000F 1995
Honda - CBR1000F 1996
Honda - CBR1000F Hurricane 1987
Honda - CBR1000F Hurricane 1988
Honda - CBR1100XX 1997
Honda - CBR1100XX 1998
Honda - VF1000F Interceptor 1984
Honda - VF1000R 1985
Honda - VF1000R 1986
Honda - VF700F Interceptor 1984
Honda - VF700F Interceptor 1985
Honda - VF750F V45 Interceptor 1983
Honda - VF750F V45 Interceptor 1984
Honda - VFR700F Interceptor 1986
Honda - VFR700F2 Interceptor 1986
Honda - VFR700F2 Interceptor 1987
Honda - VFR750F 750 Interceptor 1986