What does the spring rate (300 lbs/in) mean for my vehicle?

A spring rate of 300 pounds per inch means that it takes 300 pounds of force to compress the spring by one inch. This rate affects how stiff or soft your suspension feels, influencing ride comfort and how the vehicle handles body roll during cornering.

What is the inner diameter of this spring?

This FOX coilover spring has an inner diameter of 3 inches. It's important to ensure this matches the diameter of your coilover shock body for proper fitment and function.

What is the overall length of this spring?

The overall length of this FOX coilover spring is 12 inches. This measurement is important for ensuring it fits correctly within your suspension setup and achieves the desired ride height and travel.

FOX Coilover Spring 12" x 3" 300lb Silver 039-37-300-A

Name: Fox Coilover Spring 12.000 TLG X 3.00 ID X 300 lbs/in. Silver
Brand: FOX
SKU: fox-fox-coilover-spring-12-000-tlg-x-3-00-id-x-300-lbs-in-silver-t14-178935
Price: 160.00 USD
Availability: BackOrder

Fox Coilover Spring 12.000 TLG X 3.00 ID X 300 lbs/in. Silver

$160.00

On Backorder

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

Fox Coilover Spring 12" L x 3" ID x 300 lb/in. Silver.

Key Features

This is a FOX coilover spring.
The spring measures 12 inches in length.
It has a 3-inch inner diameter.
The spring rate is 300 pounds per inch.
This spring is finished in silver.

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Product Details

This 300 lb/in coilover spring from FOX measures 12 inches long with a 3-inch inner diameter. It's built to provide a specific spring rate, which is crucial for controlling how your vehicle's suspension compresses and rebounds. The spring rate dictates how much force is needed to compress the spring a certain distance, directly impacting ride comfort and handling characteristics.

Choosing the right spring rate is key to dialing in your suspension. A 300 lb/in rate is a popular choice for many applications looking for a noticeable improvement over stock without being overly stiff. This particular spring is finished in silver, offering a clean look under your vehicle. It's designed to work with FOX coilovers, ensuring proper fitment and performance when paired with compatible components.

When selecting a spring, consider your vehicle's weight and your intended use. This FOX spring is a well-built option for those seeking to fine-tune their suspension's response. Always ensure compatibility with your specific coilover body and vehicle setup before installation.