What is the main advantage of the double-wall steel body construction?

The double-wall steel body construction is designed for increased durability. This robust build helps ensure the shocks can withstand the rigors of riding and maintain their performance over time.

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 set the desired spring tension, allowing you to customize the ride stiffness based on your weight or riding preferences.

Are these shocks suitable for carrying extra weight?

Yes, the five-position preload adjuster allows you to increase the spring tension. This makes them suitable for riders who carry extra gear or a passenger, helping to maintain proper ride height and handling.

Progressive Harley 412 Series Shocks 13.5in - Chrome

Specifications

Brand: Progressive
Part #: 412-4009C
UPC: 412-4009C

Progressive Harley 412 Series Shocks 13.5in - Chrome

Name: Progressive Harley 412 Series Shocks 13.5in - Chrome
Brand: Progressive
Price: 379.95 USD
Availability: InStock

$379.95

On Backorder — Expected to ship by Apr 11, 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 13.5in - Chrome. Offers improved suspension performance with durable construction and adjustable preload.

Key Features

Fits many Harley-Davidson models including Sportster and FXR series.
Double-wall steel body construction for durability.
Nitrogen charged for consistent damping performance.
Multi-stage velocity sensitive valving adjusts to road conditions.
Five-position cam style preload adjuster allows for ride tuning.
Progressive rate springs available in chrome or black.

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Product Details

These Progressive 412 Series shocks feature a double-wall steel body construction, measuring 13.5 inches in length and finished in chrome. This design choice contributes to their durability and provides a consistent damping performance thanks to the nitrogen-charged, multi-stage velocity-sensitive valving. They are built to offer an improvement over stock suspension for a wide range of Harley-Davidson motorcycles, including models like the Sportster XL1200X Forty-Eight and the FXR Super Glide II.

The shocks include a five-position cam-style preload adjuster, allowing you to fine-tune the suspension to your specific needs, whether you're carrying extra weight or prefer a firmer ride. The progressive rate springs, available in chrome or black, work with the damping system to provide a smoother, more controlled feel on the road. This combination of robust construction and adjustable features makes them a solid option for riders looking to enhance their bike's handling and comfort.