Progressive Harley 444 Series Shocks 13.5in Super Heavy Duty - Black

The patented Frequency Sensing Technology (FST) in these Progressive 444 Series shocks is a notable design choice. It means the shocks can automatically adjust their damping based on the frequency of bumps you hit, whether they're small road imperfections or larger impacts. This allows the shock to distribute oil through its ports in a way that effectively soaks up the hit, leading to a more comfortable ride across various road conditions. These are specifically configured as Super Heavy Duty, intended for touring models carrying 350 lbs or more, and come in a 13.5-inch length with a black finish.

Beyond the FST, these shocks also feature a top-mount threaded preload adjuster. This makes it easy to fine-tune your suspension's preload by hand, without needing any special tools. The shocks use a progressive rate spring and a deflective disc valving system, further contributing to their ability to adapt to changing loads and road surfaces. This combination of features makes them a solid option for riders who prioritize a smooth and controlled experience, especially on longer rides or when carrying extra weight.

These shocks are designed to fit a wide range of Harley-Davidson touring models, including popular bikes like the Road King Special, Street Glide, and Road Glide. They are made in the USA and come with a limited lifetime warranty, offering peace of mind with your investment. If you're looking to improve your ride comfort and handling on a heavy touring bike, these shocks are worth considering.