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.
The Progressive 444 Series shocks are engineered for Harley-Davidson motorcycles, utilizing proprietary Frequency Sensing Technology (FST) to deliver a superior ride. This advanced system dynamically adjusts damping based on bump frequency, ensuring comfort over various road imperfections.
Experience a new level of ride quality with these meticulously designed shocks. The FST system means your suspension is constantly adapting, providing a supple feel for small road chatter and firm support for larger impacts. This intelligent damping system translates to better control and reduced rider fatigue on long hauls.
Beyond the intelligent FST, these shocks offer rider-friendly adjustability. The hand-adjustable preload allows you to quickly dial in your suspension to match your load, whether you're riding solo, two-up, or fully loaded with gear. Available in standard or heavy-duty spring rates, you can choose the ideal setup to optimize your Harley-Davidson's handling and comfort for your specific riding style.
What is Frequency Sensing Technology and how does it work?
Frequency Sensing Technology (FST) in Progressive 444 Series shocks senses the rate at which bumps occur and automatically adjusts the damping to provide a smoother, more controlled ride across different road conditions.
Can I adjust these shocks without special tools?
Yes, the preload on these shocks is hand-adjustable, allowing you to easily fine-tune your suspension settings without needing any specific tools.
Are these shocks suitable for riding with a passenger?
Yes, with available standard or heavy-duty spring rates and hand-adjustable preload, you can configure these shocks to provide optimal performance and comfort whether you're riding solo or with a passenger. Confirm fitment with Shop by Bike.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669236 |
| WEIGHT | 8.1 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.
