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 412 Series shocks are engineered to deliver consistent suspension performance for your Harley-Davidson. Featuring a robust design and advanced valving, these shocks are built to handle the demands of the open road. Riders looking for improved handling and a more comfortable journey will appreciate the capabilities of the 412 Series.
Why riders pick this
Consistent suspension performance with nitrogen charging
Multi-stage valving for responsive damping
Easily adjustable 5-position preload
Durable double-wall steel construction
Available in chrome or black finishes
Upgrade your Harley-Davidson's rear suspension with the proven performance of Progressive 412 Series shocks. These shocks are constructed with a durable double-wall steel body and utilize high-pressure nitrogen gas charging, ensuring consistent damping across a wide range of riding conditions. The multi-stage velocity-sensitive valving is designed to react effectively to bumps and imperfections, providing a smoother and more controlled ride.
Tunable Performance
Double-wall steel construction for lasting durability
High-pressure nitrogen gas charging for consistent damping
Multi-stage velocity-sensitive valving for responsive control
5-position cam-style preload adjuster for rider-specific tuning
Available in chrome or black finish options
Engineered for the Road
The 412 Series shocks offer a significant improvement over stock units, allowing you to tailor your suspension to your specific needs. The 5-position cam-style preload adjuster makes it simple to adjust for solo riding, two-up, or when carrying extra gear, ensuring your bike remains stable and comfortable. Choose between standard or heavy-duty spring rates to perfectly match your riding style and load requirements, providing a confident feel mile after mile.
Specifications
Brand: Progressive
Manufacturer Part #: 412-4011C
Weight: 10.4 lb
Category: Suspension / Shocks and Struts
WARNING: Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov
Common questions
Can I adjust these shocks for different rider weights?
Yes, the 5-position cam-style preload adjuster allows you to easily dial in the suspension for solo riding, a passenger, or luggage.
Will these shocks improve my bike's handling?
Yes, the consistent damping and tunable preload of the 412 Series shocks are designed to improve stability and control, especially over varied road surfaces.
Are there different spring rates available?
Yes, these shocks are available with standard or heavy-duty spring rates to best suit your riding style and typical load.
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
T14-630119
WEIGHT
10.4 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 412 Series Shocks - H...
$379.95
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