Progressive Suspension 412 Series Shock - 13.5 Inch Heavy Duty Chrome for Harley-Davidson - Part Number 412-4021C Lighting License Group It is ideal for engines

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

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

The shock absorber offers adjustable rebound damping

the technology delivers a significant 25% increase in torque capacity over stock

Progressive Suspension 412 Series Shock - 13.5 Inch Heavy Duty Chrome for Harley-Davidson - Part Number 412-4021C Lighting License Group It is ideal for engines412 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