Progressive 444 Series shocks for Harley-Davidson use patented Frequency Sensing Technology (FST) to dynamically adjust damping in real time, responding to small bumps and large impacts with automatic oil port adjustment. Hand-adjustable preload and available in standard or heavy-duty spring rates with black or chrome finish.
Fits Harley-Davidson models. Confirm your specific year and model compatibility with Progressive or your dealer before ordering.
FST senses bump frequency and automatically routes oil through internal ports to adjust damping — small bumps get softer response, big hits get firmer support without manual adjustment.
Yes — preload adjusts by hand using the threaded top mount cap. No special tools needed.
Heavy-duty springs support more load and provide firmer support. Standard springs suit lighter loads. Choose based on your bike's weight and riding style.
Yes — Progressive manufactures these shocks in the USA and backs them with a Limited Lifetime Warranty.
The 444's Frequency Sensing Technology adapts automatically as you ride, eliminating the need for manual revalving in most street-riding scenarios.
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614103 |
| WEIGHT | 9.3 lb |
The shocks seem super nice, but they are incredibly stiff. Turns out they’re 130/200 top to bottom. Would be nice to have an option to choose your spring rate. Couldn’t find it in the description either. Have them installed on a 1998 sportster 1200 by the way. I’m about 180lbs and they don’t move at all, my friend who weighs about 260 also said they were way to firm. Hope this helps.
