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 provides predictable handling characteristics, which is important for performance driving where consistent feedback is needed.

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 performance coilover assemblies.

What is the spring rate of this part?

The spring rate for this AST Linear Race Spring is 80 Newtons per millimeter (N/mm). This indicates how stiff the spring is; a higher number means a stiffer spring.

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Specifications

Brand: AST
Part #: AST-100-80-61
UPC: astAST-100-80-61

AST Linear Race Springs - 100mm Length x 80 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 100mm Length x 80 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-100mm-length-x-80-n-mm-rate-x-61mm-id-single-t14-329690
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.
Linear spring rate of 80 N/mm offers consistent suspension response.
Spring measures 100mm in length.
Designed for performance and racing applications.

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About this part

Product Details

AST is a well-known name in the performance suspension world, and these Linear Race Springs are a prime example of their focus on track-ready components. This specific spring measures 100mm in length with a spring rate of 80 Newtons per millimeter and a 61mm inner diameter, designed for use in coilover applications where precise suspension control is critical.

The linear spring rate means that as the spring is compressed, the force it exerts increases at a constant, predictable rate. This consistency is vital for tuning suspension behavior on a race car or performance street vehicle, allowing for predictable handling during aggressive driving. The 61mm inner diameter is a common size for many performance coilover systems, making it a versatile option for builders and tuners looking to customize their setup.