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 utilize patented Frequency Sensing Technology (FST) to dynamically adjust damping in real time, ensuring optimal response to both small bumps and big hits. This results in consistently comfortable and controlled ride for your Harley-Davidson. With hand-adjustable preload, deflective disc valving, and progressive-rate springs, these shocks deliver a finely tuned ride without requiring special tools.
Elevate your Harley-Davidson's ride quality with the Progressive 444 Series shocks. These shocks are engineered with patented Frequency Sensing Technology (FST) that automatically adapts damping to the road conditions as you ride. This intelligent system provides a smooth feel over minor road imperfections while firming up for larger impacts, ensuring your V-twin remains stable and comfortable across diverse terrain. The combination of deflective disc valving and progressive-rate springs contributes to a superior, controlled ride.
Proudly made in the USA, the 444 Series shocks are designed to provide a significant performance upgrade for Harley-Davidson riders. Their dynamic damping capabilities reduce rider fatigue and improve overall handling, making them ideal for long tours or spirited rides. With options for spring rates and finishes, you can customize your suspension to perfectly match your riding style and your bike's aesthetic.
What is the main benefit of Frequency Sensing Technology (FST)?
FST automatically senses bump frequency and adjusts damping in real time, allowing the shocks to provide a soft ride over small bumps and firm support for larger hits without manual intervention.
Are these shocks easy to adjust for different loads?
Yes, the Progressive 444 Series shocks feature hand-adjustable preload, making it simple to fine-tune the suspension for solo riding, with a passenger, or with luggage.
Will these shocks improve my Harley-Davidson's cornering ability?
By providing more consistent and controlled damping, these shocks can significantly improve your bike's stability and composure through corners, enhancing overall handling performance.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614107 |
| WEIGHT | 8.0 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.
