What is the main benefit of the progressive rate springs?

Progressive rate springs offer a more comfortable initial ride by being softer on small bumps. They then stiffen up as the suspension compresses, providing better support when carrying a passenger or during hard braking.

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 select the desired preload setting, which changes how much the spring is compressed before you even start riding.

What is the advantage of gas-charged damping?

Gas-charged damping helps prevent the oil inside the shock from foaming under heat and stress. This ensures more consistent and reliable damping performance, especially during extended riding or when the suspension is working hard.

Progressive Harley 412 Series Shocks 11.0in - Chrome

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Specifications

Brand: Progressive
Part #: 412-4005C
UPC: 412-4005C

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

Only 2 left in stock

Progressive Harley 412 Series Shocks 11.0in - Chrome. Improves suspension performance with durable, gas-charged damping and adjustable preload.

Key Features

Fits a wide range of Harley-Davidson motorcycles, including models like the Sportster XLH1200 and FXR Super Glide II.
All-steel double-wall damper construction ensures durability for long-term use.
High-pressure gas charged for consistent damping performance across various riding conditions.
Multistage velocity-sensitive damping adjusts to your riding speed for a smoother feel.
Five-position cam-style preload adjuster allows you to fine-tune the suspension for your load and riding style.
Standard progressive rate springs offer a comfortable initial ride that stiffens under load.

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Will this fit your vehicle?

Product Details

If you're looking to get more out of your Harley-Davidson's suspension, these Progressive 412 Series shocks are a solid option. They're designed to offer a noticeable improvement over stock, giving you a smoother ride and better control. This particular set comes in a bright chrome finish and measures 11.0 inches long, fitting a wide range of Harley models from the late 70s through the early 2000s, including popular bikes like the Sportster XLH1200 and the FXR Super Glide II.

What makes these shocks work well is their well-built construction. They feature a double-wall steel body that's built to last, housing a nitrogen-charged damping system. This system uses multi-stage valving that adjusts to your speed, providing consistent damping whether you're cruising or hitting bumps. Plus, you can easily tune the ride to your liking with the five-position cam-style preload adjuster. Whether you're carrying a passenger or riding solo, you can dial in the right amount of support.

These shocks come with standard progressive rate springs, which offer a softer initial feel that stiffens up as you compress the suspension. This design helps absorb road imperfections while still providing good support during harder riding. If you're looking for a dependable upgrade that offers both improved performance and a classic look, these chrome 412 Series shocks are a great choice for your Harley.