• 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

Fits: 1984-2017 Harley Softail FXST/FLST/FLS (excluding Springer); 1984-2013 Harley Touring (Excluding HD Trike and 02-05 FLHT & FLTR models with a fork cartridge); 1993-2005 FXDWG; 1985-1986 FXWG