The S3 sintered compound is optimal for street bikes, dual sport, touring, cruisers. It's recommended on applications with rather larger engines or for people who ride harder than average and want the great stopping power of a sintered brake pad. Fits: Honda CB400N 1978-1981 CB750F 1979-1981 CB750F SUPER SPORT 1977-1978 CB900F 1979-1980 CBX1000 1978-1980 CX500 1979-1981 GL1000 GOLD WING 1978 GL1100 1980-1981 GL1100I 1980-1981