Progressive Suspension 944 Ultra Low shocks with Quik Preload System (QPS) for Harley-Davidson touring models. Adjust spring preload in seconds without removing saddlebags, and let Frequency Sensing Technology automatically adapt damping to road conditions for a consistent ride whether solo or two-up.
Features
- Frequency Sensing Technology (FST) automatically adjusts damping to bump frequency
- Progressive Rate main springs tuned for touring weight
- Quik Preload System (QPS) adjusts in under a minute without removing saddlebags
- Sealed gear-driven preload adjuster with 17mm of adjustment range
- 30 complete turns of fine preload adjustment
- 8mm socket wrench compatible
- Sits 2 in. lower than stock on most models
- Available in Standard and Heavy Duty versions
- Lifetime Limited Warranty
Specifications
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Brand: Progressive
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Manufacturer Part #: 944-4019UL-QPS
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Weight: 9.6 lb
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Category: Suspension / Shocks and Struts
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WARNING: Cancer and Reproductive Harm — California Prop 65
Fitment
Fits Harley-Davidson models. Check your specific year and model against Progressive's application guide to confirm fitment.
Frequently Asked Questions
Can I adjust preload without taking off my saddlebags?
Yes — the Quik Preload System (QPS) lets you adjust spring preload in under a minute without removing saddlebags, ideal for switching between solo and two-up riding.
How does Frequency Sensing Technology work?
FST senses bump frequency and automatically adjusts shock damping in real time, adapting to different road surfaces for a smoother ride.
What tools do I need to adjust preload?
An 8mm socket wrench (not included). All 30 turns of preload adjustment use the same tool.
Will these shocks sit lower than my stock suspension?
Yes — these Ultra Low shocks sit approximately 2 in. lower on most Harley models for a lowered stance.
Can I choose between Standard and Heavy Duty?
Yes — both versions are available. Heavy Duty is recommended for heavier riders or when frequently carrying a passenger.
California Proposition 65 Warning
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov