What is the preload adjustment for on these shocks?

The five-position cam-style preload adjuster allows you to change the spring tension. This helps you fine-tune the suspension to match your weight and riding preference, ensuring a more comfortable and controlled ride.

Are these shocks filled with nitrogen or just air?

These shocks are high-pressure gas charged, which typically means they are filled with nitrogen. This helps maintain consistent damping performance under various riding conditions.

What is the difference between Standard and Heavy-Duty springs?

While this specific part number comes with standard progressive rate springs, Progressive Suspension offers Heavy-Duty spring options for select applications. Heavy-Duty springs are generally intended for heavier riders or carrying extra loads.

Progressive Harley 412 Series Shocks 11.0in - Chrome

Specifications

Brand: Progressive
Part #: 412-4030C
UPC: 412-4030C

Progressive Harley 412 Series Shocks 11.0in - Chrome

Name: Progressive Harley 412 Series Shocks 11.0in - Chrome
Brand: Progressive
Price: 379.95 USD
Availability: InStock

$379.95

On Backorder

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 11.0in - Chrome. These well-built shocks offer a notable improvement in suspension performance for a wide range of Harley-Davidson models.

Key Features

Fits a wide range of Harley-Davidson models from 1973-1986.
Double-wall steel body construction for durability.
High-pressure gas charged for consistent damping performance.
Multistage velocity-sensitive valving provides smooth control.
Five-position cam-style preload adjuster lets you fine-tune your ride.
11.0 inch length with a chrome finish and chrome springs.

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Will this fit your vehicle?

Product Details

If you're looking to give your Harley-Davidson a more comfortable and controlled ride, these Progressive 412 Series shocks are a solid option. They fit a wide range of classic Harley models, from the FX Super Glide to the FXST Softail Standard, and are designed to be a direct replacement for your stock shocks. The simple, durable design means they'll be an improvement to your motorcycle's suspension performance for a long time.

These shocks feature a double-wall steel body construction with a high-pressure gas charge. This setup helps ensure smooth, consistent damping, so you get a more predictable feel over bumps and rough roads. For dialing in your ride, they come with a five-position cam-style preload adjuster. This lets you easily adjust the spring tension to suit your weight or riding style, whether you're carrying a load or riding solo. The chrome finish and chrome springs give them a classic look that complements many Harley-Davidson models.