What does a 650 lb/in spring rate mean?

A 650 lb/in spring rate means that for every inch the spring is compressed, it will exert 650 pounds of force. This rate is a measure of the spring's stiffness and is crucial for tuning suspension performance.

What is the inner diameter of this spring?

This Fox coilover spring has an inner diameter of 2.5 inches. This dimension is important for ensuring it fits correctly onto the shock body of compatible coilover systems.

What is the length of this coilover spring?

The overall length of this Fox coilover spring is 14 inches. This measurement, along with the inner diameter and spring rate, determines its application within a specific coilover setup.

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Specifications

Brand: FOX
Part #: 039-25-650-A

Fox Coilover Spring 14.000 TLG X 2.500 ID X 650 lbs/in. Silver

Name: Fox Coilover Spring 14.000 TLG X 2.500 ID X 650 lbs/in. Silver
Brand: FOX
SKU: fox-fox-coilover-spring-14-000-tlg-x-2-500-id-x-650-lbs-in-silver-t14-178911
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.

Key Features

Fits vehicles with compatible coilover shock bodies.
Spring rate is 650 lbs/in for controlled suspension response.
Measures 14 inches in length.
Has a 2.5-inch inner diameter.
Features a silver finish.

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About this part

Product Details

This is a Fox 650 lb/in coilover spring, measuring 14 inches long with a 2.5-inch inner diameter. It's designed to provide a specific spring rate for your vehicle's suspension system. The silver finish offers a clean look.

The 650 lb/in spring rate means that for every inch the spring is compressed, it will exert 650 pounds of force. This rate is chosen to balance ride comfort with control, helping to manage body roll during cornering and reduce excessive squat under acceleration. The 14-inch length and 2.5-inch inner diameter are key dimensions that ensure compatibility with specific coilover shock bodies. Proper spring selection is crucial for tuning your suspension's performance.