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 better suit your weight, whether you're riding alone or with a passenger, for a more comfortable and controlled ride.

What does 'nitrogen-charged' mean for these shocks?

Nitrogen-charged means the shocks contain high-pressure gas. This helps prevent the oil inside from foaming, which can happen with heat and heavy use. Consistent damping performance is maintained even under demanding conditions.

Do these shocks come with progressive rate springs?

Yes, these 412 Series shocks come with progressive rate springs. Progressive springs offer a softer initial feel that stiffens as they compress, providing a good balance of comfort and support for various riding situations.

Progressive 412 Series Shocks 11.5in Chrome 412-4230C

Name: Progressive Cruiser 412 Series Shocks 11.5in - Chrome
Brand: Progressive
Price: 379.95 USD
Availability: InStock

Progressive Cruiser 412 Series Shocks 11.5in - Chrome

$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 Cruiser 412 Series Shocks 11.5in - Chrome. Improve your ride with durable, gas-charged damping and adjustable preload.

Key Features

Fits a wide range of Honda, Kawasaki, and Triumph cruiser motorcycles.
Doublewall steel body construction offers durability.
Nitrogen-charged damping provides consistent performance.
Multi-stage, velocity-sensitive valving adjusts damping based on suspension speed.
Five-position cam-style preload adjuster allows for ride customization.
Progressive rate springs help improve ride quality across different loads.

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Will this fit your vehicle?

Product Details

Progressive is well-known for making reliable suspension components for a wide range of motorcycles. These 412 Series shocks are a solid option for riders looking to improve their bike's handling and comfort. They feature a doublewall steel body construction that's built to last, and the nitrogen-charged damping helps provide consistent performance over varying road conditions.

What makes these shocks a good choice is their balanced approach to performance and durability. The multi-stage, velocity-sensitive valving means the damping changes based on how quickly the suspension moves, giving you a smoother ride on rough pavement and better control during spirited riding. Plus, the five-position cam-style preload adjuster lets you easily dial in the suspension to match your riding style, whether you're carrying a passenger or riding solo.

These 11.5-inch chrome shocks fit a variety of popular cruisers, including models like the Honda VT1100C Shadow and Kawasaki VN1500 Vulcan Classic. They offer a noticeable improvement over stock suspension, giving you a more comfortable and controlled ride.