The K5 sintered compound is optimal for off-road dirt bikes and ATV. It is recommended for riders who demand great off-road stopping power and brake pad durability when riding on tough off-road terrain. Fits: Honda TRX500FA RUBICON 4WD 2005-2013 TRX500FE FOURTRAX FOREMAN 4X4 2005-2011 TRX500FGA FOURTRAX FOREMAN 4X4 2005-2009 TRX500FM 4WD FOREMAN 2005-2011 TRX500FPA 4X4 FOREMAN 2009-2014 TRX500FPAC RUBICON 4WD 2011 TRX500FPE FOURTRAX FOREMAN 4X4 2007-2011 TRX500FPM 4WD FOREMAN 2008-2011 TRX680FA IRS RINCON 2012-2013 TRX680FA IRS RINCON 4WD 2006-2014 TRX680FA IRS RUBICON 4WD 2015-2021 TRX680FGA RINCON 2007-2013 TRX700XX 2008-2013