DescriptionAlways fit new springs which get tired after miles of heat and use.. EBC spring kits are 10% stiffer than standard and are sold in engine sets.. As stated in general fitting/safety instructions, advise customers that lever will feel slightly heavier when uprating springs, and to test ride to acquaint themselves with the change in control..This item fits the following vehicle applications:compatible with Harley Davidson FLFBS Fat Boy 114 2018-2020compatible with Harley Davidson FLHCS Heritage Classic 114 2018-2020compatible with Harley Davidson FLHR Road King 2017-2020compatible with Harley Davidson FLHRXS Road King Special 2017-2020compatible with Harley Davidson FLHT Electra Glide Standard 2019-2020compatible with Harley Davidson FLHTCU Electra Glide Ultra Classic 2017-2019compatible with Harley Davidson FLHTCUTG Tri Glide Ultra 2017-2020compatible with Harley Davidson FLHTK Ultra Limited 2017-2020compatible with Harley Davidson FLHTKL Ultra Limited Low 2017-2019compatible with Harley Davidson FLHX Street Glide 2017-2020compatible with Harley Davidson FLHXS Street Glide Special 2017-2020compatible with Harley Davidson FLRT Freewheeler 2017-2020compatible with Harley Davidson FLTRK Road Glide Limited 2020compatible with Harley Davidson FLTRU Road Glide Ultra 2017-2019compatible with Harley Davidson FLTRX Road Glide 2017-2020compatible with Harley Davidson FLTRXS Road Glide Special 2017-2018compatible with Harley Davidson FXBRS Breakout 114 2018-2020compatible with Harley Davidson FXFBS Fat Bob 114 2018-2020