Progressive Suspension 412 Series Shock - 13.5 Inch Heavy Duty Chrome for Harley-Davidson - Part Number 412-4021C Lighting License Group resulting in a more connected

resulting in a more connected and precise lever feel that improves rider control and confidence on the trail or track

The shock absorber offers adjustable rebound damping

It is ideal for engines that have already been converted to an S&S gear drive system

making them suitable for extended use

PLEASE NOTE:  A DESIGN CHANGE THAT WILL INSET THE AXLE NUTS INTO THE ARM TO PROVIDE CLEARANCE FOR MOST ALL AFTERMARKET EXHAUSTS WILL BE IMPLEMENTED

Progressive Suspension 412 Series Shock - 13.5 Inch Heavy Duty Chrome for Harley-Davidson - Part Number 412-4021C Lighting License Group resulting in a more connected412 Series Shock 13. 5" Heavy Duty Chrome H D The Progressive Suspension 412 Series Shock, designed specifically for Harley Davidson models, offers a reliable upgrade to enhance your motorcycle's suspension performance. Featuring a simple yet durable design, these shocks provide cost effective improvements that contribute to a smoother ride and better handling. The 13. 5 inch length makes them suitable for a variety of Harley models, ensuring