What is the main benefit of the 5-position preload adjuster?

The 5-position cam-style preload adjuster allows you to easily customize the suspension's stiffness. This means you can dial in the ride to suit your weight and riding style, whether you're riding solo or with a passenger and luggage.

What makes these shocks an improvement over stock?

These shocks offer a double-wall steel body with nitrogen-charged damping, which provides smoother and more consistent control compared to many stock units. The progressive rate springs also help adapt to varying road conditions and loads for a more comfortable ride.

Are these shocks suitable for heavy loads or aggressive riding?

Yes, the 412 Series shocks are available in Standard or Heavy-Duty options for select applications, and the 5-position preload adjuster lets you firm up the suspension to better handle heavier loads or more spirited riding.

Progressive Harley 412 Series Shocks 12.6in - Chrome

Specifications

Brand: Progressive
Part #: 412-4038C
UPC: 412-4038C

Progressive Harley 412 Series Shocks 12.6in - Chrome

Name: Progressive Harley 412 Series Shocks 12.6in - Chrome
Brand: Progressive
Price: 379.95 USD
Availability: InStock

$379.95

On Backorder — Expected to ship by Apr 25, 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 12.6in - Chrome. Improve your ride with these well-built shocks featuring adjustable preload.

Key Features

Fits 14+ Harley-Davidson Dyna models including FXD Dyna Super Glide, FXDB Street Bob, and FXDWG Dyna Wide Glide.
Features a 12.6-inch length and a full show chrome finish.
Double-wall steel body construction for durability.
Nitrogen charged for consistent damping performance.
Includes a 5-position cam-style preload adjuster to fine-tune your ride.
Equipped with progressive rate springs.

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Will this fit your vehicle?

Product Details

What you get here are a pair of Progressive 412 Series shocks, measuring 12.6 inches long and finished in chrome. These are designed to be a direct replacement for a wide range of Harley-Davidson Dyna models, offering a noticeable improvement over stock suspension. They feature a double-wall steel body construction and are nitrogen-charged for consistent damping performance, meaning you get a smoother, more controlled ride whether you're cruising or carrying a load.

The real advantage of these 412 Series shocks is their adjustability and solid build. You can easily dial in your ride using the five-position cam-style preload adjuster, letting you fine-tune the suspension whether you're a lighter rider or carrying extra weight. The progressive rate springs are well-built and designed to handle the demands of the road, providing a comfortable and stable feel. This particular set comes in a bright chrome finish, giving your bike a sharp look while enhancing its performance.