Progressive 444 Series shocks feature proprietary Frequency Sensing Technology (FST) that dynamically adjusts damping in real time as you ride over bumps of any size for a consistently comfortable ride. Hand-adjustable preload, deflective disc valving, and progressive-rate springs come in standard or heavy-duty configurations with black or chrome finish.
Fits Harley-Davidson models. Verify suspension attachment points and overall bike configuration before ordering.
FST senses bump frequency and automatically adjusts damping oil flow in real time — small bumps get lighter damping, big hits get firmer support without manual adjustment.
Yes. A threaded adjuster cap on top lets you twist-adjust spring preload by hand — no special tools or compressor needed.
Yes. Choose standard or heavy-duty spring rate depending on your weight, cargo, and riding style.
Black or chrome. Both finishes use the same FST internals — your choice is purely aesthetic.
Progressive includes a Limited Lifetime Warranty on all 444 Series shocks.
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614104 |
| WEIGHT | 8.4 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.
