See Fitment Guide Below Heavy-duty version of the Progressive Suspension fork springs The cost-effective go-to for a substantial increase in front end ride quality Include Progressive Suspension rate springs combined with preload spacers Can improve front end stability and brake dive control as well as increase comfort for heavier riders or those looking for a firm high-performance feel out of their forks 2016-2017 Harley-Davidson Low Rider S FXDLS - -2013-2017 Harley-Davidson Breakout FXSB - -2008-2017 Harley-Davidson Fat Bob FXDF - -2008-2011 Harley-Davidson Softail Rocker C FXCWC - -2008-2010 Harley-Davidson Softail Rocker FXCW - -2007-2011 Harley-Davidson Night Rod Special VRSCDX - -2007-2010 Harley-Davidson V-Rod VRSCAW - -2007-2009, 2014-2017 Harley-Davidson Low Rider EFI FXDL - -2007 Harley-Davidson V-Rod Screamin' Eagle Tribute VRSCX - -2006-2017 Harley-Davidson Street Bob FXDB - -2006-2014 Harley-Davidson Super Glide Custom EFI FXDCI - -2006-2008, 2010-2017 Harley-Davidson Wide Glide EFI FXDWGI - -2006-2008 Harley-Davidson Night Rod VRSCD - -2006 Harley-Davidson Super Glide FXD35 - -2006 Harley-Davidson Wide Glide FXDWG - -2006 Harley-Davidson Super Glide FXD - -2006 Harley-Davidson Low Rider FXDL - -2005 Harley-Davidson V-Rod VRSCB - -2004, 2006-2010 Harley-Davidson Super Glide EFI FXDI - -2002-2006 Harley-Davidson V-Rod VRSCA