Progressive Suspension has focused exclusively on American V-twin suspension since 1982, and its Monotube fork cartridges and 400/970/970G shock series are among the most common upgrades on baggers and Softails. For most riders the stock rear shock is the single worst part on the bike — this is the fix.
Progressive 444 Series shocks for Harley-Davidson utilize Frequency Sensing Technology (FST) to automatically adjust damping in real time, adapting to various road imperfections. This intelligent system ensures a consistently smooth and controlled ride, whether you're cruising or hitting rougher patches.
Experience a significant upgrade in ride quality with Progressive 444 Series FST shocks. Engineered for Harley-Davidson models, these shocks feature advanced Frequency Sensing Technology that dynamically responds to road conditions, providing optimal damping for both small bumps and larger impacts. With hand-adjustable preload and a choice of spring rates, you can fine-tune your suspension for personalized comfort and enhanced handling.
The 444 Series shocks are a straightforward bolt-on upgrade designed to improve your Harley's comfort and control. Made in the USA, these shocks are built to last and deliver the performance serious riders demand. Pair them with a front-end suspension upgrade for a fully balanced and confidence-inspiring ride.
What is Frequency Sensing Technology (FST)?
FST is a Progressive innovation that senses the speed and size of road impacts, automatically adjusting the shock's internal damping to absorb both minor road imperfections and significant bumps smoothly.
Do these shocks require special tools for adjustment?
No, the preload on the Progressive 444 Series shocks is hand-adjustable, allowing you to fine-tune your ride without needing any specialized tools.
Will these shocks fit my Harley-Davidson?
These shocks are designed for various Harley-Davidson models. Please confirm fitment for your specific year and model using our Shop by Bike tool before ordering to ensure compatibility.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669576 |
| WEIGHT | 8.85 lb |
This is my 2nd set of progressive's 444 shocks.<br />My 1st set were on my custom 2013 Harley Davidson Dyna Switchback, the 2nd set are on my 2016 Triumph Rocket 3 roadster.<br />These shocks do a fantastic job of smoothing out the bumps in the road, even with a passenger.
