What is a linear spring rate?

A linear spring rate means that for every inch the spring is compressed, the force required to compress it further increases by a consistent amount. This provides a predictable and steady feel during suspension travel, which is beneficial for performance driving.

What does the 61mm ID refer to?

The 61mm ID refers to the inner diameter of the spring. This measurement is important to ensure the spring will fit correctly onto the shock body or perch of your coilover assembly.

Does this spring come with any hardware?

This product listing is for a single AST Linear Race Spring. Any necessary hardware, such as spring perches or collars, would typically be part of the coilover kit itself or need to be sourced separately.

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Specifications

Brand: AST
Part #: AST-200-80-61
UPC: astAST-200-80-61

AST Linear Race Springs - 200mm Length x 80 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 200mm Length x 80 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-200mm-length-x-80-n-mm-rate-x-61mm-id-single-t14-329849
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 coilovers with a 61mm inner diameter.
Spring length is 200mm.
Spring rate is 80 N/mm for consistent performance.
Linear spring design offers predictable response.
Single spring included.

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About this part

Product Details

When you're setting up your suspension for track days or serious performance driving, the right spring rate is crucial for handling. These AST Linear Race Springs are built to give you a consistent, predictable response on the track. They measure 200mm in length with a spring rate of 80 N/mm and a 61mm inner diameter, making them a popular choice for many coilover setups.

Linear springs like these offer a straightforward spring rate that doesn't change much throughout its travel. This means you get a solid, well-built spring that behaves predictably under load, which is exactly what you want when pushing your car to its limits. The 61mm inner diameter is a common size, so they often fit directly into many existing coilover bodies without modification.