Progressive 13" 412 Series Shocks for 1958-2003 Harley-Davidson Big Twin and Sportster Custom Yamaha Forward Controls 6061 aluminum

6061 aluminum

and deliver 240CCA of power

After you’ve flashed your ECU

helping prevent barrel-rolling

Precision Ground Ends

Progressive 13" 412 Series Shocks for 1958-2003 Harley-Davidson Big Twin and Sportster Custom Yamaha Forward Controls 6061 aluminumProgressive 13" 412 Series Shocks for 1958 2003 Harley Davidson Big Twin and Sportster 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