Progressive 444 Series shocks for Harley-Davidson, engineered with Frequency Sensing Technology (FST) that dynamically adjusts damping in real time to soak up both small and large bumps. Hand-adjustable preload and progressive-rate spring provide a comfortable, tunable ride without special tools.
Fits Harley-Davidson models. Confirm your model year and chassis type with Progressive or your dealer to ensure correct configuration (standard or heavy-duty rate).
FST senses bump frequency and automatically adjusts damping in real time — small bumps get a different response than large ones for a more comfortable ride overall.
No — preload adjusts by hand using the threaded cap on top of each shock. Simply twist to tune spring stiffness.
Progressive offers 444 shocks in standard or heavy-duty spring rates. Choose based on your riding style and load (passenger, luggage, etc.).
Yes — Progressive 444 shocks are manufactured in the USA and backed by a Limited Lifetime Warranty.
Preload adjustment requires stopping, but FST damping adjusts automatically as you ride without any rider input.
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-630140 |
| WEIGHT | 8.7 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.
