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.
The Progressive 444 Series shocks are engineered with Frequency Sensing Technology (FST) to provide adaptive damping for your Harley-Davidson. This system automatically adjusts to both small road imperfections and large impacts, ensuring a consistent and controlled ride.
Experience a new level of comfort and performance with these advanced rear shocks. Featuring deflective disc valving and progressive-rate springs, the 444 Series delivers a tunable ride that responds precisely to varying road conditions. The hand-adjustable preload means you can set up your suspension quickly and easily for any load or riding style.
These shocks are designed to transform your Harley-Davidson's handling, offering improved stability and rider comfort. Whether you're navigating urban environments or pushing your bike on the open road, the 444 Series provides the confidence and control you need, making every mile more enjoyable.
How does FST improve the ride?
FST senses bump frequency and automatically adjusts damping rates in real time. This means small bumps receive less damping for a smoother feel, while larger impacts get more damping to prevent bottoming out, all without rider input.
Can I adjust the spring preload on these shocks?
Yes, the Progressive 444 Series shocks feature hand-adjustable spring preload, allowing you to easily fine-tune your suspension for different loads or riding preferences without needing any special tools.
Are these shocks available in different finishes?
Yes, these shocks are typically available in both black and chrome finish options to match your bike's aesthetic. Please confirm the available finishes when selecting your specific part.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669243 |
| WEIGHT | 9.6 lb |
The shocks seem super nice, but they are incredibly stiff. Turns out they’re 130/200 top to bottom. Would be nice to have an option to choose your spring rate. Couldn’t find it in the description either. Have them installed on a 1998 sportster 1200 by the way. I’m about 180lbs and they don’t move at all, my friend who weighs about 260 also said they were way to firm. Hope this helps.
