What is the main benefit of the progressive rate springs?

Progressive rate springs offer a more adaptable ride. They start softer for comfort over small bumps and become stiffer as they compress, providing better support during hard acceleration or 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 mechanism to change the spring tension, allowing you to fine-tune the ride height and stiffness based on your load.

Are these shocks suitable for heavier riders or carrying a passenger?

Yes, the five-position preload adjuster allows you to increase the spring tension to better support heavier loads, including a passenger. Heavy-duty spring options are also available for select applications.

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Progressive Harley 412 Series Shocks 12.0in - Black

Specifications

Brand: Progressive
Part #: 412-4080B
UPC: 412-4080B

Progressive Harley 412 Series Shocks 12.0in - Black

Name: Progressive Harley 412 Series Shocks 12.0in - Black
Brand: Progressive
Price: 379.95 USD
Availability: InStock

$379.95

Only 4 left in stock

Progressive Harley 412 Series Shocks 12.0in - Black. Features a doublewall steel body and gas-charged damping for improved ride performance.

Key Features

Fits multiple Harley-Davidson models including FLHR, FLHT, FLHX, and FLTR series.
All steel double wall damper construction for durability.
High-pressure gas charged for consistent damping performance.
Multistage velocity-sensitive damping adjusts to road conditions.
Five-position cam style preload adjuster allows for ride tuning.
Progressive rate springs available in black or chrome.

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Product Details

Starting with the doublewall steel body construction, these Progressive 412 Series shocks are built to last. This robust design, combined with nitrogen-charged, multi-stage velocity-sensitive valving, helps ensure smooth and consistent damping performance, which is a noticeable improvement over stock suspension. They are designed to fit a wide range of Harley-Davidson models, including popular bikes like the Road King, Street Glide, and Electra Glide.

The five-position cam-style preload adjuster is a practical touch, allowing you to easily dial in your suspension. Whether you're carrying a lighter load or a heavier one, you can fine-tune the ride to suit your needs. These shocks come with progressive rate springs, available in either black or chrome, and you can also choose between standard or heavy-duty spring options for select applications, giving you flexibility to match your riding style and aesthetic preferences.