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: Harley Davidson FLH 1340 ELECTRA GLIDE 1981-1983 1985 FLH 1340 HERITAGE 1981 FLH Electra Glide Special 1984 FLHC 1340 ELECTRA GLIDE CLASSIC 1982 FLT 1340 80 CLASSIC 1981 FLT 1340 TOUR GLIDE 1979-1984 FLTC 1340 TOUR GLIDE CLASSIC 1984-1985 FLTC Tour Glide Classic 1984