What is the benefit of the progressive rate springs?

Progressive rate springs offer a more comfortable ride by providing a softer initial spring rate that stiffens as it compresses. This helps absorb smaller bumps while still offering support for larger impacts or heavier loads.

How do I adjust the preload on these shocks?

These shocks feature a five-position cam-style preload adjuster. You can rotate the cam to change the spring tension, allowing you to fine-tune the ride height and stiffness based on your riding style and load.

What is included with these shocks?

This listing is for a pair of Progressive 412 Series 12.0 inch chrome shocks. Please refer to the manufacturer's documentation for a complete list of included hardware and installation components.

Specifications

Brand: Progressive
Part #: 412-4036C
UPC: 412-4036C

Progressive Harley 412 Series Shocks 12.0in - Chrome

Name: Progressive Harley 412 Series Shocks 12.0in - Chrome
Brand: Progressive
SKU: progressive-progressive-harley-412-series-shocks-12-0in-chrome-t14-614004
Price: 379.95 USD
Availability: BackOrder

$379.95

On Backorder — Expected to ship by Apr 22, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Progressive Harley 412 Series Shocks 12.0in - Chrome. These shocks offer a smooth, consistent ride with adjustable preload for many Harley-Davidson Dyna models.

Key Features

Fits 1995-2017 Harley-Davidson Dyna models.
Doublewall steel body construction for durability.
Nitrogen charged, multi-stage velocity-sensitive valving for consistent damping.
Five-position cam style preload adjuster allows for ride customization.
Progressive rate springs with chrome finish.
Full show chrome cover for a custom look.

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About this part

Product Details

The doublewall steel body construction on these Progressive 412 Series shocks means they're built tough. Inside, nitrogen-charged, multi-stage velocity-sensitive valving works to give you smooth and consistent damping, which is a noticeable improvement over stock suspension. These shocks are designed to fit a wide range of Harley-Davidson Dyna models, including popular bikes like the Street Bob, Fat Bob, and Wide Glide, offering a solid upgrade for your ride.

You can dial in your ride with the five-position cam-style preload adjuster, letting you fine-tune the suspension whether you're carrying a light load or a heavy one. The progressive rate springs, in this case with chrome springs and a full show chrome cover, help provide a comfortable ride across various conditions. This well-built setup is a popular choice for riders looking to enhance their motorcycle's handling and comfort.