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 for Harley-Davidson Touring models, offering a lowered stance without compromising ride quality. These shocks feature Frequency Sensing Technology (FST) to automatically adjust damping, ensuring a consistent and comfortable ride. The Quik Preload System (QPS) allows for effortless preload adjustments in seconds, even with saddlebags installed.
Why riders pick this
Automatic damping adjustment with Frequency Sensing Technology
Fast preload changes without removing saddlebags
Progressive rate main springs for touring comfort
Lowers ride height on most models for a custom look
Precise, fine-tuned preload adjustment range
Transform your Harley's ride and look with the Progressive 944 Ultra Low QPS Shocks. Designed for performance-oriented V-twin riders, these shocks deliver a significant drop in ride height while maintaining superior comfort and control. The intelligent damping system reacts instantly to road imperfections, providing a smooth and stable experience on any journey, whether you're carving canyons or cruising the interstate.
Advanced Technology for Superior Ride
Frequency Sensing Technology (FST) automatically adapts damping to bump frequency
Quik Preload System (QPS) allows preload adjustment in under a minute
Progressive Rate main springs specifically tuned for touring weights
Sealed, gear-driven preload adjuster offers precise 30-turn fine adjustment
Lowers your Harley approximately 2 inches for a custom, aggressive profile
Built for the Demands of the Road
These shocks are more than just a lowering solution; they're a complete suspension upgrade. The robust design and advanced features ensure durability and consistent performance mile after mile. The convenience of the QPS system means you can easily optimize your suspension for solo rides, two-up cruising, or fully loaded touring, always maintaining the ideal balance of comfort and control.
Specifications
Brand: Progressive
Manufacturer Part #: 944-4019UL-QPS
Weight: 9.6 lb
Category: Suspension / Shocks and Struts
WARNING: Cancer and Reproductive Harm — California Prop 65
Common questions
Will installing these shocks require me to remove my saddlebags for adjustment?
No, the Quik Preload System (QPS) is specifically designed to allow preload adjustments in seconds without needing to remove your saddlebags, offering maximum convenience.
Do these shocks provide a softer ride than stock?
These shocks feature Frequency Sensing Technology (FST) and Progressive Rate main springs tuned for touring, which work together to automatically adjust damping and provide a more controlled and comfortable ride than many stock setups, especially with a lowered stance.
What is the benefit of Frequency Sensing Technology (FST)?
FST automatically adjusts the damping of the shocks based on the frequency of bumps, ensuring optimal ride quality and control by adapting to various road conditions without manual intervention.
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
T14-834756
WEIGHT
9.6 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...
$1,209.95
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