What is the main benefit of the progressive rate springs?

Progressive rate springs offer a more adaptable ride. They start softer for initial comfort over small bumps and stiffen up as they compress, providing better support during hard braking or when carrying heavier loads.

How do I adjust the preload on these shocks?

The shocks feature a five-position cam-style preload adjuster. You'll typically use a spanner wrench to rotate the cam to your desired setting, which changes how much the springs are compressed.

Are these shocks suitable for heavy-duty applications?

While these shocks offer improved damping and adjustability, Progressive Suspension also offers Heavy-Duty versions for select applications if you require even more damping capacity for heavier bikes or loads. This specific model is the standard duty version.

Progressive 412 Series Shocks 13.5in Black 412-4009B

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

Progressive Harley 412 Series Shocks 13.5in - Black

$379.95

Only 5 left in stock

Progressive Harley 412 Series Shocks 13.5in - Black. Improves suspension performance with durable construction and adjustable preload.

Key Features

Fits a wide range of Harley-Davidson motorcycles, including many Sportster models.
All-steel double wall damper construction offers durability.
High-pressure gas charged for consistent damping performance.
Multi-stage velocity sensitive damping adjusts to road conditions.
Five-position cam style preload adjuster allows for ride customization.
Progressive rate springs in black finish complement the shock body.

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Will this fit your vehicle?

Product Details

When you're looking to give your Harley-Davidson a smoother ride and better handling, especially on longer trips or when carrying extra weight, the Progressive 412 Series shocks are a solid choice. These shocks are built to be a noticeable improvement over stock suspension, offering consistent damping and a more comfortable feel for a wide range of Harley-Davidson models, including popular Sportster variants like the XL1200X Forty-Eight and XL883N Iron 883, as well as models like the FXRT Sport Glide.

The doublewall steel body construction is well-built and durable, housing a nitrogen-charged system with multi-stage valving. This setup ensures that the damping action remains smooth and consistent, whether you're cruising on the highway or navigating varied road conditions. You can also fine-tune the ride to your preference using the five-position cam-style preload adjuster, making it easy to dial in the suspension whether you're riding solo or with a passenger.

These shocks come with progressive rate springs, available in black to match the shock body, and are designed for a direct fit on many Harley-Davidson models. They offer a great balance of performance and value for riders looking to upgrade their motorcycle's suspension.