What does a linear spring rate mean for my suspension?

A linear spring rate means the force the spring exerts increases proportionally to how much it's compressed. This offers predictable handling characteristics, which is beneficial for performance driving and racing where consistent suspension feedback is important.

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 compatibility with your specific suspension components.

What is the spring rate of this AST spring?

This spring has a rate of 170 N/mm. This is a relatively stiff rate, indicating it's intended for performance applications where reduced body roll and improved control during aggressive driving are desired.

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Specifications

Brand: AST
Part #: AST-130-170-61
UPC: astAST-130-170-61

AST Linear Race Springs - 130mm Length x 170 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 130mm Length x 170 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-130mm-length-x-170-n-mm-rate-x-61mm-id-single-t14-329753
Price: 103.36 USD
Availability: BackOrder

$103.36

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 coilover systems with a 61mm inner diameter.
Features a linear spring rate of 170 N/mm for predictable suspension response.
Spring length is 130mm.
Designed for performance and racing applications.
Single spring unit.

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About this part

Product Details

This is a single AST Linear Race Spring. It measures 130mm in length, has a spring rate of 170 N/mm, and a 61mm inner diameter. These springs are designed for performance applications where precise suspension control is needed.

The linear spring rate means that as the spring is compressed, the force it exerts increases at a constant rate. This predictable behavior is crucial for tuning suspension response, especially in racing or track day setups. 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.

When selecting springs, consider the overall weight of your vehicle and your intended use. A 170 N/mm rate offers a significant increase in stiffness over stock springs, providing improved body control during cornering and braking. Always ensure compatibility with your existing coilover bodies or suspension components before installation.