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: PGO PMX110 (2 stroke) 2006 T-REX 150 2006 2015-2017 SYM EURO X 50 (2 stroke) 2006 JET EURO X 100 (2 stroke) 2006