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.
Elevate your Harley-Davidson Dyna's ride with Progressive 990 Sport series shocks, engineered for superior performance and complete adjustability. These shocks feature a high-pressure monotube design with deflective disc damping, ensuring consistent handling throughout the entire suspension stroke. With independent rebound, high-speed, and low-speed compression knobs, you can perfectly dial in the feel for your weight and aggressive riding style.
Why riders pick this
Adjustable High & Low Speed compression damping
Adjustable rebound damping for precise control
Adjustable ride height (0.4 inch range)
Hand-adjustable spring preload
High-pressure monotube with deflective disc damping
The Progressive 990 Sport shocks are the ultimate upgrade for Dyna riders seeking precise control and a customizable ride. The advanced monotube design maintains optimal damping performance, preventing fade even under demanding conditions. This means your Dyna will respond predictably, giving you confidence whether you're hitting the twisties or navigating city streets. The ability to fine-tune every aspect of your suspension allows for an unparalleled connection to the road.
Total Control and Customization
Adjustable High & Low Speed compression damping
Adjustable rebound damping for personalized response
Adjustable ride height (0.4 inch range via eyelet)
Hand-adjustable spring preload for quick setup changes
High-pressure gas monotube with deflective disc damping
Lightweight aluminum body and linear-rate coil spring
Engineered for the Discerning Dyna Rider
Every detail of the Progressive 990 Sport shocks is designed with the performance-oriented Dyna rider in mind. From the captured jounce bumper to the lightweight aluminum body, these shocks are built for durability and optimal function. The full range of adjustments allows you to tailor your suspension precisely, working in harmony with other performance upgrades like engine modifications or upgraded braking systems. Experience a transformation in your Dyna's ride quality and handling dynamics.
Specifications
Brand: Progressive
Manufacturer Part #: 990-1002
Category: Suspension / Shocks and Struts
Weight: 11.7 lb
WARNING: Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov
Common questions
Do these shocks require special tools for adjustment?
No, the rebound, compression, and preload adjustments are all made via hand-accessible knobs and a threaded eyelet, allowing for tool-free tuning.
Will these shocks improve my Dyna's cornering ability?
Yes, the fully adjustable valving and consistent damping provided by these 990 Sport shocks significantly improve stability and control, leading to better cornering performance for your Dyna.
Can I adjust the ride height with these shocks?
Yes, these shocks feature an adjustable eyelet that provides a 0.4-inch range for fine-tuning your Dyna's ride height.
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
T14-614161
WEIGHT
11.7 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 990 Sport Shocks - Ha...
$1,896.95
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