Progressive 444 Series shocks use Frequency Sensing Technology (FST) to automatically adjust damping on-the-fly as you hit bumps, delivering consistent comfort across all road surfaces. Hand-adjustable preload, deflective disc valving, and a progressive-rate spring combine for a tunable ride without special tools.
Fits Harley-Davidson models. Confirm your specific year and model for correct spring rate and mount configuration before ordering.
FST automatically senses bump frequency and adjusts damping oil flow in real time, giving you plush comfort on small bumps and support on big impacts without manual adjustment.
Yes — the top-mount threaded preload adjuster twists by hand. No wrench or special tool needed for fine-tuning.
Yes. Standard and heavy-duty rates are available. Choose based on your bike's weight, passenger load, and road conditions. Progressive can help you select the right rate.
Progressive backs these shocks with a Limited Lifetime Warranty for as long as you own the bike.
Yes — 444 Series shocks are manufactured in the United States.
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-630136 |
| WEIGHT | 8.1 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.
