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: Chinese Scooters Elite Star 50 2009-2012 Euro 50 2009-2012 Euro Rider 2009-2012 Solana 2009-2012 Sunny 50 2009-2012 Kymco 50 JIVE 2004-2006 PGO PMX50 (2 stroke) 2006 Yamaha BW100 BEE WEE 2006 YW100 BEEWEE 2007-2008