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 GL1800 F6B Bagger 2013-2017 GL1800 GOLDWING 2001-2017 GL1800 Goldwing A 2001-2010 GL1800 LUXURY 2015 GL1800C Valkyrie 2014-2017 GOLD WING F6C VALKYRIE 2017 GOLD WING F6C VALKYRIE 40TH ANNIVERSARY 2016