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 FLFBS SOFTAIL FAT BOY 2018-2021 FLS SOFTAIL SLIM 2015-2017 FLSL SOFTAIL SLIM 2018-2021 FLSS SOFTAIL SLIM S 2016-2017 FLSTC SOFTAIL HERITAGE CLASSIC 2015-2021 FLSTF SOFTAIL FAT BOY 2015-2017 FLSTFBS SOFTAIL FAT BOY S 2016-2017 FXSB BREAKOUT 2015-2017 FXST SOFTAIL STANDARD 2015 XR 1200X 2012-2013 XR1200 SPORTSTER 2000-2010 XR1200X SPORTSTER 2010-2011 Honda CB1100 2014-2017 CB1100F 2014-2016 CB1300 2001-2012 CB1300S 2005-2012 CB400 SF Super Four V-Tec NC39 1999-2004 CB400 SUPER FOUR 2008-2012 CBR600 FS 2001-2002 CBR600F 1999-2004 CBR600F4i 2005-2006 CBR600RR 2003-2004 CBR900RR FIREBLADE 1998-1999 CBR929RR FIREBLADE 2000-2001 CBR954RR FIREBLADE 2002-2003 GL1800C Valkyrie 2014-2017 GOLD WING F6C VALKYRIE 2017 GOLD WING F6C VALKYRIE 40TH ANNIVERSARY 2016 VTR1000 SP1 2000-2001 VTR1000 SP2 2002-2006 Hyosung GT650 COMET 2009-2013 GT650R 2009-2016 ST7 2010-2014 ST7L EFI 2015-2017 ST7L EFI DELUXE 2015-2017