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

The 5-position cam-style preload adjuster allows you to fine-tune the suspension's stiffness. You can easily adjust it to accommodate different rider weights or cargo loads, ensuring optimal ride comfort and handling.

What type of springs are included with these shocks?

These shocks come equipped with progressive rate springs. This type of spring offers a more comfortable ride at lower speeds and becomes stiffer as the suspension is compressed, providing better support during hard braking or cornering.

Are these shocks filled with gas?

Yes, these shocks are high-pressure gas charged. This helps to prevent the oil and gas from mixing, which can lead to foaming and reduced damping performance, ensuring more consistent damping.

Progressive Harley 412 Series Shocks 13.0in - Black

Specifications

Brand: Progressive
Part #: 412-4077B
UPC: 412-4077B

Progressive Harley 412 Series Shocks 13.0in - Black

Name: Progressive Harley 412 Series Shocks 13.0in - Black
Brand: Progressive
Price: 379.95 USD
Availability: InStock

$379.95

On Backorder — Expected to ship by Apr 15, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

Fits a wide range of Harley-Davidson motorcycles, including Road King, Street Glide, and Electra Glide models.
Features a durable doublewall steel body construction for long-lasting performance.
High-pressure gas charged damping provides consistent performance across various riding conditions.
Multi-stage velocity-sensitive valving adjusts damping based on road speed for a smoother ride.
Includes a five-position cam-style preload adjuster to customize ride height and stiffness.
Available with progressive rate springs in black finish for a custom look.

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Will this fit your vehicle?

Product Details

These Progressive 412 Series shocks are a solid option for a wide range of Harley-Davidson motorcycles, including models like the Road King, Street Glide, and Road Glide. They offer a noticeable improvement in suspension performance over stock, providing a smoother and more consistent ride. The doublewall steel body construction is built to last, and the nitrogen-charged damping helps maintain performance even under demanding conditions.

What sets these shocks apart is their well-built design and adjustability. The multi-stage velocity-sensitive valving ensures that the damping changes appropriately with road conditions, giving you a comfortable ride whether you're cruising on the highway or dealing with rougher patches. Plus, the five-position cam-style preload adjuster lets you easily dial in the suspension to match your riding style and load, whether you're riding solo or two-up.

With their black finish and progressive rate springs, these shocks not only perform well but also offer a clean look for your bike. They are a popular choice for riders looking for a durable and effective suspension upgrade that offers great value.