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 for Harley-Davidson motorcycles integrate patented Frequency Sensing Technology (FST) to dynamically adjust damping as you ride. This innovative system provides a smooth, controlled ride over varying road conditions, from small bumps to larger impacts.
These shocks are engineered to deliver a significant upgrade in ride quality for your Harley-Davidson. With hand-adjustable preload and deflective disc valving, you can fine-tune your suspension without needing special tools, ensuring your bike handles exactly how you want it to.
Whether you're cruising city streets or tackling twisty backroads, the 444 Series shocks respond to every input. The ability to easily adjust preload means you can optimize your setup for solo rides, two-up touring, or loaded-down excursions, giving you consistent performance and comfort.
What is Frequency Sensing Technology (FST)?
FST is a patented Progressive technology that senses the frequency of bumps and automatically adjusts the damping to provide optimal ride comfort and control in real-time, without any rider input.
Do these shocks require special tools for adjustment?
No, the spring preload on the Progressive 444 Series shocks is hand-adjustable, meaning you can fine-tune your ride without needing any special tools.
Will these shocks fit my specific Harley-Davidson model?
Shock fitment can vary significantly by year and model. Please use the 'Shop by Bike' feature on our website to confirm compatibility for your specific Harley-Davidson before ordering.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669242 |
| WEIGHT | 7.3 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.
