Progressive Suspension has focused exclusively on American V-twin suspension since 1982, and its Monotube fork cartridges and 400/970/970G shock series are among the most common upgrades on baggers and Softails. For most riders the stock rear shock is the single worst part on the bike — this is the fix.
The Progressive 944 Ultra Low QPS Shocks are engineered to give your Harley Touring or Softail a custom lowered look while maintaining exceptional ride quality. With Frequency Sensing Technology (FST), damping automatically adjusts to road conditions, ensuring a smooth and controlled experience. The Quik Preload System (QPS) allows for rapid, tool-free preload adjustments, perfect for switching between solo and two-up riding.
Why riders pick this
Automatic damping adjustment with Frequency Sensing Technology
Quick preload changes without removing saddlebags
Progressive rate main springs for touring comfort
Lowers ride height for an aggressive custom look
Precise 30-turn fine preload adjustment
Achieve that aggressive, slammed profile without sacrificing comfort or control on your Harley. These Progressive 944 Ultra Low QPS Shocks are a game-changer for V-twin riders seeking both style and performance. The intelligent design means your suspension is always optimized for the road ahead, reacting to bumps and load changes seamlessly. Enjoy a more connected feel to the road and enhanced stability through turns.
Optimized Ride & Unmatched Convenience
Frequency Sensing Technology (FST) automatically adjusts damping to bump frequency
Quik Preload System (QPS) allows preload adjustment in under a minute without saddlebag removal
Progressive Rate main springs are specifically tuned for touring weight and comfort
Lowers your Harley approximately 2 inches for a distinctive custom look
Performance for Every Ride
Whether you're embarking on a cross-country tour or just heading out for a local cruise, these shocks are built to perform. The ability to quickly adapt your suspension to different loads and riding conditions means you'll always have the ideal setup. Experience reduced rider fatigue and increased confidence, knowing your Harley's suspension is working smarter, not just harder.
Specifications
Brand: Progressive
Manufacturer Part #: 944-4020UT-QPS
Category: Suspension / Shocks and Struts
Weight: 10 lb
California Prop 65 Warning: Yes — Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Common questions
Can I adjust the preload on these shocks without removing my saddlebags?
Yes, the Quik Preload System (QPS) is designed for exactly that. You can adjust the preload in under a minute using an 8mm socket wrench, without having to take off your saddlebags.
How much will these shocks lower my Harley?
These Progressive 944 Ultra Low QPS Shocks are designed to lower your Harley Touring or Softail model approximately 2 inches from its stock ride height on most models.
What is Frequency Sensing Technology (FST)?
FST is an innovative feature that automatically adjusts the shock's damping based on the frequency of road bumps, providing a consistently smooth and controlled ride by adapting to changing road conditions.
Ordering from Vtwinbikers
Brand new, sourced through authorized US distribution — never used, never grey-market.
Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
BRAND
Progressive
TYPE
Shocks and Struts
SKU
T14-834757
WEIGHT
10.0 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
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Dec 25, 2025
Stiff
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.
Progressive 944 Ultra Low QPS Sho...
$3.749.000,00
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