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.
Experience a new level of ride quality on your Harley-Davidson with Progressive 444 Series Shocks. These shocks incorporate proprietary Frequency Sensing Technology (FST) that intelligently adjusts damping in real time, responding dynamically to both minor road chatter and major impacts for an exceptionally compliant ride.
The Progressive 444 Series Shocks are built for performance and comfort, designed to transform your Harley-Davidson's handling. FST ensures that your suspension is always optimized, providing a smooth feel over small bumps and firm control when encountering larger obstacles. With deflective disc valving and a progressive rate spring, these shocks deliver consistent, reliable performance that makes every ride more enjoyable and controlled, whether you're commuting or touring.
Dial in your Harley-Davidson's suspension with ease thanks to the 444 Series' top-mount threaded preload adjuster. This feature allows for quick, tool-free adjustments, letting you fine-tune your ride for different loads or preferences. Made in the USA and backed by a limited lifetime warranty, these shocks represent a significant upgrade in both performance and durability for your V-twin.
How does Frequency Sensing Technology (FST) improve my ride?
FST allows the shock to adapt its damping characteristics automatically, providing a softer ride over small, rapid bumps and firmer control for larger, slower impacts, resulting in a smoother overall ride.
Can I adjust these shocks without special tools?
Yes, the 444 Series features a top-mount threaded preload adjuster, which is hand-adjustable, allowing you to fine-tune your suspension without needing any specialized tools.
Are these shocks suitable for two-up riding?
Yes, with the ability to adjust preload, these shocks can be tuned to accommodate a passenger or extra luggage, maintaining optimal performance and ride height. Confirm your specific model for correct spring rate options.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669575 |
| WEIGHT | 9.0 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.
