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 incorporate patented Frequency Sensing Technology (FST) to dynamically adjust damping in real time as you ride. This advanced system ensures both small and large bumps are absorbed efficiently, providing a consistently smooth and controlled experience. With hand-adjustable preload and a progressive rate spring, these shocks offer a significant upgrade for your Harley-Davidson.
Transform your Harley-Davidson's ride with the Progressive 444 Series shocks, designed to deliver exceptional comfort and control. The core innovation is the patented Frequency Sensing Technology (FST), which automatically adapts the damping to various road conditions without requiring any manual input. This means your V-twin will glide over minor road imperfections while maintaining composure during more significant impacts, providing a superior ride quality on every journey.
Built in the USA, the 444 Series shocks are a robust upgrade for riders seeking improved handling and a more comfortable ride. Their ability to dynamically adjust to road conditions makes them ideal for diverse riding styles, from aggressive canyon carving to relaxed touring. Combine these shocks with a quality front suspension upgrade for a complete transformation of your Harley-Davidson's ride dynamics.
How does Frequency Sensing Technology (FST) work?
FST automatically senses bump frequency and adjusts damping in real time, allowing the shocks to be soft for small bumps and firm for large hits without manual adjustment.
Is a special tool required to adjust the preload?
No, the Progressive 444 Series shocks feature hand-adjustable spring preload, so you won't need any special tools for tuning.
Will these shocks improve my bike's handling?
Yes, by providing consistent and adaptive damping, these shocks significantly improve stability and control, enhancing your Harley-Davidson's overall handling characteristics.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614105 |
| WEIGHT | 6.0 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.
