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.
Progressive 444 Shocks — Harley-Davidson
Progressive 444 Series shocks for Harley-Davidson feature proprietary Frequency Sensing Technology that dynamically adjusts damping to both small and large bumps for a compliant ride. Top-mount threaded preload adjuster allows fine-tuning without special tools, and the shocks are made in the USA with a limited lifetime warranty.
Features
- Frequency Sensing Technology (FST) automatically adjusts damping based on bump frequency
- Deflective disc valving for responsive suspension control
- Progressive rate spring
- Threaded preload adjuster — hand-adjustable, no tools required
- Available in standard or heavy duty spring rates
- Black or chrome finish options
- Made in USA with limited lifetime warranty
Specifications
- Brand: Progressive
- Manufacturer Part #: 444-4019C
- Weight: 9 lb
- Category: Suspension / Shocks and Struts
- Warranty: Limited Lifetime
- Origin: Made in USA
- WARNING: Contains material known to the State of California to cause cancer and reproductive harm — see P65Warnings.ca.gov
Fitment
Fits Harley-Davidson models. Confirm specific model and year fitment before ordering.
Frequently Asked Questions
What is Frequency Sensing Technology and how does it work?
FST automatically senses bump frequency and adjusts oil flow through ports to match the hit — small bumps get quick response, large bumps get full absorption for a smoother ride.
Can I adjust the preload myself?
Yes. The top-mount threaded adjuster allows you to change spring preload by hand with just a twist of the cap — no special tools needed.
Are these shocks available in different spring rates?
Yes. The 444 Series comes in standard or heavy duty spring configurations to match your bike's weight and riding style.
What finish options are available?
Choose black or chrome finish to match your bike's aesthetic.
Are these street-legal?
Yes, these shocks are DOT-compliant and street-legal for highway use.
California Proposition 65 Warning
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669575 |
| WEIGHT | 9.0 lb |