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, dynamically adjusting damping in real time. Patented Frequency Sensing Technology (FST) responds to both small road imperfections and larger hits for consistent comfort and control. Riders can fine-tune the feel with hand-adjustable preload.
Uncork the performance of your Harley-Davidson with Progressive 444 Series shocks. These units utilize patented Frequency Sensing Technology (FST) to automatically adapt damping to changing road conditions, ensuring a plush ride over varied terrain. From highway cruising to navigating city streets, the 444 Series delivers responsive and balanced handling.
The 444 Series shocks are designed for riders who demand both comfort and performance. With options for standard or heavy-duty spring rates, you can tailor your suspension to your specific weight and riding style. These shocks are a straightforward upgrade for improving the overall ride quality of your V-twin.
What is Frequency Sensing Technology (FST)?
FST is a patented system that senses bump frequency and automatically adjusts damping to absorb both small road imperfections and larger impacts smoothly.
Do these shocks come in different spring rates?
Yes, Progressive 444 Series shocks are available with either standard or heavy-duty spring rates to match your riding style and load.
Are special tools needed to adjust the preload?
No, the preload on these shocks is hand-adjustable, allowing you to easily fine-tune your suspension without special tools.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614108 |
| WEIGHT | 7.7 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.
