Progressive Heavy Duty 13" 412 Series Shocks for Harley-Davidson Big Twin and Sportster 1958-2003

Progressive Heavy Duty 13" 412 Series Shocks for Harley-Davidson Big Twin and Sportster 1958-2003 Looking for a vast improvement over stock suspension? Progressive's 412-series shocks ride will outperform your stock shocks.  Made in USA Black finish Set of two 13" length Choice of Standard or Heavy Duty Heavy Duty shocks are specifically designed for bikes that are operated at or near the manufacturer's maximum load rating over 50% of the time Suitable for use on many Sportster and Big Twin applications including FX, FXR, Touring, and Dyna Kit includes bushings, spacer kit, and preload spanner Double-walled steel bodies are nitrogen charged, and velocity-sensitive valving handles damping duties. The five position cam-style preload adjuster allows you to make quick setup adjustments. Grab a set of 412's for your bike today and feel the difference!