Stand Spring Information:50057-02 Stand Spring, Compatible with 2002-2017 Harley Dyna Models, 3.4 Inch (Spring Length from Hook to Hook), 1 Pack Wide range of compatibility: 50057-02 spring for Harley 2002-2017 Dyna FXD, FXDF, FXDL, FXDB, FXDC, FXDI, FXDXI, FXDXT, FLD, FXDWGI, FXDWG for Fat Bob/Low Rider/Street Bob/ Super Glide/Switchback/Wide Glide, Model 291124 Excellent performance: the motorcycle stand spring is made of high quality alloy steel with chrome-plated surface, it has extreme durability, reliable tension and long service life, which ensures the smooth and safe operation of your bike and prevents unwanted movement when stopping. Note: If your kickstand spring loses tension or has been damaged, it must be replaced in time to maintain safe parking and prevent potential accidents, the spring made by DONFON is a good choice! Easy Installation: Parking stand springs are easy to install, don't waste time or money calling a technician. Simply order new springs and install them, the whole process even takes only a few minutes, which saves you a lot of energy!