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 utilize Frequency Sensing Technology (FST) to dynamically adjust damping based on bump size, ensuring a controlled ride over all types of road imperfections. This intelligent system provides a smoother experience, absorbing both minor road chatter and significant impacts effectively.
Upgrade your Harley-Davidson's ride with the advanced engineering of Progressive 444 Series FST shocks. These shocks feature Frequency Sensing Technology that automatically adapts to road conditions, delivering consistent performance and enhanced control. With deflective disc valving and hand-adjustable preload, you can easily fine-tune your suspension for optimal comfort without the need for specialized tools.
Crafted in the USA, the Progressive 444 Series shocks are designed to provide a significant improvement in your Harley's handling and comfort. Their robust construction and advanced features make them an ideal upgrade for riders seeking a more refined and controlled ride. Confirm fitment for your specific Harley-Davidson model to unlock a new level of suspension performance.
How does Frequency Sensing Technology (FST) improve my ride?
FST dynamically senses the size and speed of road bumps, automatically adjusting the shock's damping to provide a smoother, more controlled ride over both small surface imperfections and larger impacts.
Can I adjust the preload without taking the shocks off?
Yes, the Progressive 444 Series shocks feature hand-adjustable spring preload, allowing you to easily tune your suspension on the bike without any special tools.
Are these shocks compatible with my Harley-Davidson?
These shocks fit a range of Harley-Davidson models. It's crucial to verify year and model compatibility using our Shop by Bike tool to ensure correct fitment for your motorcycle.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669580 |
| WEIGHT | 8.7 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.
