What is a coilover spring rate?

The spring rate, measured in pounds per inch (lb/in), indicates how much force is needed to compress the spring by one inch. A higher spring rate means a stiffer spring, which can improve handling but may reduce ride comfort.

What does the spring length and inner diameter refer to?

The 8.000-inch length is the free length of the spring, meaning its length when not compressed. The 2.500-inch inner diameter specifies the size of the shock body the spring is designed to fit around.

Does this spring come with any hardware?

This product listing is for the coilover spring only. Any necessary hardware, such as spring perches or retainers, would typically be part of the complete coilover assembly or sold separately.

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Specifications

Brand: FOX
Part #: 039-33-425-A

Fox Coilover Spring 8.000 TLG X 2.500 ID X 425 lbs/in. Silver

Name: Fox Coilover Spring 8.000 TLG X 2.500 ID X 425 lbs/in. Silver
Brand: FOX
SKU: fox-fox-coilover-spring-8-000-tlg-x-2-500-id-x-425-lbs-in-silver-t14-178959
Price: 101.00 USD
Availability: BackOrder

$101.00

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 8" x 2.5" ID x 425 lb/in. Silver.

Key Features

Fits Fox 2.5-inch body coilovers.
Spring length is 8.000 inches.
Inner diameter is 2.500 inches.
Spring rate is 425 lbs/in.
Comes in a silver finish.

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About this part

Product Details

This listing is for a single Fox 8-inch long, 2.5-inch inner diameter coilover spring rated at 425 pounds per inch. It comes in a silver finish.

This spring is designed to work with Fox 2.5-inch body coilovers, providing a specific spring rate to control suspension movement. The 425 lb/in rate is a common choice for many applications where a balance between ride comfort and control is desired, especially for vehicles with moderate weight. Choosing the correct spring rate is crucial for your suspension's performance, affecting how the vehicle handles bumps and corners.