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 bring advanced suspension technology to your Harley-Davidson, using Frequency Sensing Technology (FST) to adapt damping in real time. This means consistent comfort whether you're cruising over small bumps or taking on bigger hits.
Dial in your ride with these high-performance shocks, engineered to deliver a superior feel and improved handling. The FST system automatically adjusts to road conditions, providing a plush ride without sacrificing control. You'll notice the difference in both everyday riding and more aggressive maneuvers.
The 444 Series shocks are designed for riders who demand more from their suspension. With the ability to choose between standard or heavy-duty spring rates, you can tailor your setup to your specific weight and riding preferences. This makes them an ideal upgrade for touring riders and those carrying passengers or heavy gear, ensuring your Harley-Davidson performs optimally in any situation.
What is Frequency Sensing Technology (FST)?
FST is a Progressive innovation that automatically senses the frequency of road imperfections and adjusts the shock's damping in real time, providing optimal comfort and control for both small bumps and larger impacts.
Do these shocks require any special tools for adjustment?
No, the preload on the Progressive 444 Series shocks is hand-adjustable, meaning you can fine-tune your suspension without needing any specialized tools.
How do I choose between standard and heavy-duty spring rates?
The choice depends on your typical riding load. Standard is suitable for most solo riders, while heavy-duty is recommended if you frequently ride with a passenger, carry significant gear, or have a higher combined rider weight. Confirm fitment with Shop by Bike for specific recommendations.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669235 |
| WEIGHT | 7.95 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.
