What is a linear spring rate?

A linear spring rate means the spring's resistance increases at a constant rate as it is compressed. This provides predictable and consistent suspension behavior, which is often preferred 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 for ensuring the spring fits correctly onto the shock absorber body or spring perch of your coilover system.

Are these springs sold individually or as a set?

This product listing is for a single AST Linear Race Spring. If you are replacing or building a coilover setup, you will need to purchase the appropriate number of springs for your application.

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Specifications

Brand: AST
Part #: AST-250-130-61
UPC: astAST-250-130-61

AST Linear Race Springs - 250mm Length x 130 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 250mm Length x 130 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-250mm-length-x-130-n-mm-rate-x-61mm-id-single-t14-329889
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.
Spring length is 250mm.
Spring rate is 130 N/mm.
Inner diameter is 61mm.
Linear spring design for consistent response.
Single spring sold individually.

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About this part

Product Details

This is a single AST Linear Race Spring, measuring 250mm in length with a spring rate of 130 N/mm and a 61mm inner diameter. These springs are designed for performance applications, often used in coilover setups where precise suspension control is critical. The linear rate means the spring's resistance increases uniformly as it's compressed, providing predictable handling characteristics.

Built for demanding use, these springs are a well-built component for anyone looking to tune their suspension for track days or spirited driving. The 61mm inner diameter is a common size for many aftermarket coilover systems, making it a versatile option for custom builds or replacements. Choosing the right spring rate is key to achieving the desired ride quality and handling balance for your specific vehicle and driving style.