What makes these shocks a 'progressive rate' type?

Progressive rate springs have coils that get closer together as they compress. This means the spring rate changes during its travel, offering a softer initial feel and becoming firmer as it compresses further, which helps with both comfort and control.

Can I adjust the ride height with these shocks?

These shocks feature a five-position cam-style preload adjuster. While this primarily adjusts the spring tension for ride stiffness, it does not change the overall length or ride height of the shock itself.

What is the benefit of gas-charged damping?

Nitrogen gas charging helps prevent the oil inside the shock from foaming under heavy use. This ensures more consistent damping performance, especially during extended rides or when carrying heavier loads, compared to non-gas-charged shocks.

1958-1978 Harley-Davidson XLCH Shocks | Progressive 412 Seri

Name: Progressive Harley 412 Series Shocks 14.2in - Chrome
Brand: Progressive
Price: 379.95 USD
Availability: InStock

Progressive Harley 412 Series Shocks 14.2in - Chrome

$379.95

Only 5 left in stock

Fits 1958-1978 Harley-Davidson XLCH. Progressive 412 Series shocks offer improved suspension performance with a durable, doublewall steel body and gas-charged damping.

Key Features

Fits 1958-1978 Harley-Davidson XLCH.
Doublewall steel body construction offers durability.
Nitrogen gas charged for consistent damping performance.
Multistage, velocity-sensitive valving adapts to riding conditions.
Five-position cam-style preload adjuster allows for ride customization.
Features a bright chrome finish with progressive rate springs.

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Fits this vehicle

Harley-Davidson XLCH 1958-1978

Product Details

If you're looking to improve the ride on your 1958-1978 Harley-Davidson XLCH, these Progressive 412 Series shocks are a solid option. They're built to give you a smoother, more consistent feel on the road compared to stock suspension. The doublewall steel body construction is well-built and durable, designed to last for many miles.

Inside, these shocks use nitrogen gas to keep the damping performance steady, even when things get rough. The valving is multistage and sensitive to speed, meaning it adjusts automatically to how quickly the suspension is working. You can also fine-tune your ride using the five-position cam-style preload adjuster. This lets you set the suspension stiffness whether you're riding solo or carrying a passenger, or if you just prefer a firmer or softer feel.

These particular shocks come in a bright chrome finish with progressive rate springs, giving your bike a classic look while enhancing its handling. They are designed as a direct fit for your XLCH, making installation straightforward.