What is Frequency Sensing Technology (FST)?

Frequency Sensing Technology (FST) is a patented system that allows the shock absorber to automatically adjust its damping based on the frequency of the bumps it encounters. This means it can adapt to both small road imperfections and larger impacts for a more comfortable and controlled ride.

Can I adjust the spring preload on these shocks?

Yes, these shocks feature a top-mounted threaded preload adjuster. You can easily adjust the spring tension by hand, without needing any special tools, to fine-tune the ride to your preferences or load.

What is the difference between standard and heavy-duty spring rates?

The standard weight springs are suitable for average rider weights, while the heavy-duty springs are recommended for riders carrying 250 lbs or more, or for touring models that often carry extra luggage and a passenger. Choosing the correct spring rate ensures optimal performance and comfort.

Progressive Harley 444 Series Shocks 11.5in - Chrome

Specifications

Brand: Progressive
Part #: 444-4059C
UPC: 444-4059C

Progressive Harley 444 Series Shocks 11.5in - Chrome

Name: Progressive Harley 444 Series Shocks 11.5in - Chrome
Brand: Progressive
Price: 860.95 USD
Availability: InStock

$860.95

On Backorder

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Progressive 444 Series Shocks 11.5in - Chrome. Features Frequency Sensing Technology for an improved ride.

Key Features

Fits a wide range of Harley-Davidson motorcycles, including Road King, Street Glide, and Electra Glide models.
Features patented Frequency Sensing Technology (FST) that automatically adjusts damping for improved ride quality.
Progressive rate spring and deflective disc valving work together to absorb impacts effectively.
Top mount threaded preload adjuster allows for easy, tool-free fine-tuning of spring tension.
Available in standard or heavy-duty spring rates to suit different rider weights and loads.
Durable chrome finish for a classic look.

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Will this fit your vehicle?

Product Details

Progressive Suspension is well-known for making reliable suspension components for Harley-Davidson motorcycles. These 444 Series shocks, in a bright chrome finish, are designed to give your ride a more comfortable and controlled feel. They measure 11.5 inches long and are built to handle the demands of touring and cruising.

What sets these shocks apart is their patented Frequency Sensing Technology (FST). This advanced system automatically adjusts the damping based on the bumps you encounter. Whether it's small road imperfections or larger impacts, the FST allows the shock to distribute oil through its ports to effectively absorb the hit, leading to a more comfortable experience. You can also easily fine-tune the spring preload by hand using the top-mounted threaded adjuster, no special tools required. These shocks come with a progressive rate spring and deflective disc valving for consistent performance.

These shocks fit a wide range of Harley-Davidson models, including popular bikes like the Road King, Street Glide, and Electra Glide. They are available in standard or heavy-duty spring rates, depending on your riding weight and style. They also come with a limited lifetime warranty and are made in the USA.