What is a linear spring rate?

A linear spring rate means that for every millimeter the spring is compressed, it exerts the same amount of force. This results in predictable suspension behavior throughout its travel, which is beneficial for performance driving.

What does the 80 N/mm rate signify?

The 80 N/mm rate indicates the spring's stiffness. It means that for every millimeter the spring is compressed, it will resist with 80 Newtons of force. This is a moderately stiff rate, often used for track or performance street applications.

Can I mix and match spring brands on my coilovers?

While it's generally recommended to use springs from the same manufacturer and with matching specifications for a balanced suspension setup, compatibility depends on the specific coilover system. Always check your coilover manufacturer's guidelines before mixing components.

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Specifications

Brand: AST
Part #: AST-180-80-61
UPC: astAST-180-80-61

AST Linear Race Springs - 180mm Length x 80 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 180mm Length x 80 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-180mm-length-x-80-n-mm-rate-x-61mm-id-single-t14-329829
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 vehicles with compatible coilover systems.
Linear spring rate provides consistent suspension response.
Spring rate is 80 N/mm for a moderately stiff setting.
Spring length is 180mm.
Inner diameter is 61mm, a common size for many coilovers.
Single spring sold individually.

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About this part

Product Details

This is a single AST Linear Race Spring, measuring 180mm in length with a spring rate of 80 N/mm and a 61mm inner diameter. These springs are designed for performance applications where precise suspension control is crucial.

Linear rate springs offer a consistent force increase as they compress, meaning the suspension response is predictable throughout its travel. The 80 N/mm rate is a moderately stiff setting, suitable for track use or spirited driving where reduced body roll and improved handling are desired. The 61mm inner diameter is a common size for many coilover systems, and the 180mm length helps achieve specific ride height and suspension geometry targets.

When rebuilding or upgrading your coilover setup, choosing the right spring rate is key to balancing ride comfort and performance. These AST springs are a well-built option for those looking to fine-tune their vehicle's suspension for a more responsive feel.