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.
Elevate the ride quality of your Harley-Davidson with Progressive 444 Series shocks. Featuring patented Frequency Sensing Technology (FST), these shocks automatically adjust damping as you ride, ensuring a compliant and controlled experience over any road surface.
Progressive 444 shocks utilize FST to dynamically respond to both small bumps and large impacts by optimizing oil distribution for consistent, fade-free performance. With hand-adjustable spring preload, you can easily set up your suspension without the need for special tools, making it simple to dial in your preferred ride characteristics for solo or two-up cruising.
Made in the USA, these 444 shocks combine advanced suspension technology with a clean black finish, perfect for riders looking to enhance both the performance and aesthetics of their V-twin. The ability to fine-tune preload by hand ensures that you can always achieve optimal comfort and control, whether you're carving canyons or logging highway miles. Pair them with a matching front suspension for a complete upgrade.
What is the primary benefit of Frequency Sensing Technology (FST)?
FST allows the shocks to automatically adjust their damping characteristics based on the frequency of bumps encountered. This results in a smoother, more controlled ride as the shocks can differentiate between small road imperfections and larger impacts.
Can I adjust these shocks without specialized tools?
Yes, the spring preload on these Progressive 444 shocks is hand-adjustable, so you can easily make adjustments on the fly without needing any special tools.
How do I determine the correct fitment for my Harley-Davidson?
Progressive manufactures various configurations of the 444 series for different Harley-Davidson chassis. We strongly recommend verifying compatibility using our Shop by Bike tool or contacting our technical support team with your specific year and model before making a purchase.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669225 |
| WEIGHT | 8.8 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.
