What does a linear spring rate mean for my car's handling?

A linear spring rate means the force needed to compress the spring increases steadily as it's compressed. This offers predictable suspension response, which is beneficial for consistent handling during cornering and braking.

What is the inner diameter of this spring?

This AST Linear Race Spring has an inner diameter of 61mm. This is a common size for many aftermarket coilover systems, but it's always best to verify your existing setup.

Is this spring sold individually or as a set?

This product listing is for a single AST Linear Race Spring. If you are rebuilding a full set of coilovers, you will need to purchase multiple springs.

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Specifications

Brand: AST
Part #: AST-140-140-61
UPC: astAST-140-140-61

AST Linear Race Springs - 140mm Length x 140 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 140mm Length x 140 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-140mm-length-x-140-n-mm-rate-x-61mm-id-single-t14-329776
Price: 103.36 USD
Availability: BackOrder

$103.36

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Key Features

Fits: Coilover systems requiring a 61mm inner diameter spring.
Spring Rate: 140 N/mm provides a firm suspension response.
Length: 140mm offers a balance for ride height and travel.
Inner Diameter: 61mm is a common size for many coilover applications.
Type: Linear spring rate for predictable suspension behavior.
Construction: Well-built for performance use.

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About this part

Product Details

This is a single AST Linear Race Spring, measuring 140mm in length with a spring rate of 140 N/mm and a 61mm inner diameter. These springs are designed for performance applications where precise suspension control is crucial.

The linear spring rate means that the force required to compress the spring increases at a constant rate. This predictable behavior is favored in racing and performance setups for consistent handling and feedback. The 61mm inner diameter is a common size for many coilover systems, making it a versatile option for builders and tuners looking to customize their suspension. The 140mm length offers a good balance for achieving desired ride height and suspension travel in many applications.

When building or rebuilding a performance suspension system, choosing the right spring rate is key to matching the vehicle's weight and intended use. These AST springs are a well-built component for those seeking to fine-tune their vehicle's handling characteristics.