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 adjust it to match your weight, your riding style, or to compensate for carrying extra gear or a passenger, ensuring a more comfortable and controlled ride.

Are these shocks suitable for heavy-duty use?

Progressive offers both Standard and Heavy-Duty spring options for select applications. This particular model, the 412-4003C, comes with standard progressive rate springs and a chrome finish. If you require a Heavy-Duty application, you would need to check for specific model availability.

What makes the damping 'velocity-sensitive'?

Velocity-sensitive valving means the shocks can adjust their damping force based on how quickly the suspension is moving. This allows for a smoother ride over small bumps and provides firmer damping when encountering larger impacts or during aggressive riding.

Progressive Harley 412 Series Shocks 13.5in - Chrome

Specifications

Brand: Progressive
Part #: 412-4003C
UPC: 412-4003C

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 5, 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. Improves suspension performance with durable construction and adjustable preload.

Key Features

Fits a wide range of Harley-Davidson motorcycle models.
13.5-inch length provides a specific stance and travel.
Chrome finish and chrome springs offer a classic look.
Doublewall steel body construction for durability.
High-pressure gas charged for consistent damping performance.
Multi-stage velocity-sensitive valving adjusts damping based on road conditions.

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Will this fit your vehicle?

Product Details

If you're looking to give your Harley-Davidson a smoother ride and more controlled handling, these Progressive 412 Series shocks in a 13.5-inch length and chrome finish are a solid option. They're built to be a direct improvement over stock suspension, offering consistent damping thanks to their doublewall steel body construction and high-pressure gas charging. This setup helps keep the damping performance steady, whether you're cruising on the highway or navigating city streets.

What makes these shocks stand out is their simple yet effective design, which translates to reliable performance for a long time. You can fine-tune your ride with the five-position cam-style preload adjuster, letting you dial in the suspension to match your weight and riding style, or to compensate for cargo. The progressive rate springs offer a good balance, providing a comfortable ride when you're cruising and firming up when you need more support during acceleration or braking. This particular set comes with chrome springs and a chrome finish, giving your bike a clean, classic look.

These shocks fit a wide range of Harley-Davidson models, including popular Sportster variants like the XL1200X Forty-Eight and XL883N Iron 883, as well as touring models like the FLT Tour Glide. It's always a good idea to double-check the fitment chart to confirm they're the right length and style for your specific bike.