What is a progressive rate fork spring?

A progressive rate spring has a rate that changes as it compresses. This means it starts softer to absorb small bumps and gets stiffer as it compresses further, providing more support during hard braking or when hitting larger impacts.

What's the difference between the Heavy Duty and Standard versions?

The Heavy Duty version is intended for applications that require a firmer spring rate, often for heavier bikes or riders, or for more aggressive riding styles. The Standard version offers a more general improvement for typical riding conditions.

Does this kit come with everything needed for installation?

This kit includes the progressive rate fork springs. You will need to refer to your motorcycle's service manual for specific installation procedures and any additional components or tools required.

Progressive Fork Springs 11-1156 - Motorcycle Suspension

Name: Progressive 11-1156 Fork Sprng Kt H-D Inv
Brand: Progressive
Price: 139.95 USD
Availability: InStock

Progressive 11-1156 Fork Sprng Kt H-D Inv

$139.95

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Progressive 11-1156 Fork Sprng Kt H-D Inv. These springs improve ride comfort and reduce front-end dive during braking.

Key Features

This kit includes progressive rate fork springs.
The springs are precision wound for a dual rate action.
They soak up small road bumps while remaining firm for larger impacts.
Designed to reduce front end dive during braking.
Offers improved ride comfort and handling.
Features a Lifetime Manufacturer's Warranty.

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Will this fit your vehicle?

Product Details

This kit includes progressive rate fork springs designed to improve the ride on a range of motorcycles, including models like the Harley-Davidson Sport Glide, Fat Bob, and Low Rider ST. These springs are precision wound to offer a dual rate action: they soak up small road imperfections for a more comfortable ride, yet remain firm enough to handle larger impacts without jarring you. This updated spring rate also helps reduce the front end's tendency to dive excessively when you apply the brakes, giving you more stable control.

The 'Original' Progressive Rate Fork Springs are built to provide a noticeable improvement in both comfort and handling. They are designed to work with your existing fork internals, making them a straightforward upgrade for riders looking to enhance their bike's suspension performance. The progressive rate means the spring gets stiffer as it compresses, allowing it to adapt to different road conditions and braking forces.

This kit comes with the necessary fork springs to upgrade your front suspension. They are a well-built option for riders seeking a more compliant and controlled ride over varied road surfaces.