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 use proprietary Frequency Sensing Technology (FST) to dynamically adjust damping in real time, providing a compliant ride over all road imperfections. This intelligent system automatically responds to both small and large bumps, ensuring consistent comfort and control for your Harley-Davidson. Riders can also customize their setup with hand-adjustable preload and various spring rates.
Upgrade your Harley-Davidson's suspension with the Progressive 444 Series shocks, engineered for a noticeably smoother and more controlled ride. The innovative Frequency Sensing Technology (FST) is at the heart of these shocks, allowing them to automatically adapt their damping characteristics to the road conditions. This means your V-twin will absorb minor road chatter with ease while also providing firm support for larger impacts, delivering a superior ride experience without manual adjustments.
The 444 Series shocks are an excellent choice for Harley-Davidson riders looking to significantly improve their bike's handling and comfort. With hand-adjustable preload and a selection of spring rates, you can tailor the suspension to your specific weight, riding style, and passenger loads. These Made in USA shocks are built to last and provide reliable performance for countless miles on the open road.
What is Frequency Sensing Technology (FST)?
FST in Progressive 444 shocks automatically senses bump frequency and adjusts damping in real time, delivering optimal response to both small and large road imperfections for a consistent ride.
Can I install these shocks myself?
While installation can be performed with basic tools, we recommend consulting a qualified mechanic or referring to a service manual to ensure proper installation and setup for your specific Harley-Davidson model.
Do these shocks require any maintenance?
Progressive 444 Series shocks are designed for durability and low maintenance. Regular inspection for wear and proper operation is always recommended, but no specific ongoing maintenance is typically required beyond that.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614106 |
| WEIGHT | 8.9 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.
