What is the purpose of a linear spring rate?

A linear spring rate means the force required to compress the spring increases at a constant rate. This provides predictable suspension behavior, which is beneficial for tuning and consistent handling on the track.

What does the 61mm inner diameter signify?

The 61mm inner diameter specifies the size of the spring, indicating it's designed to fit specific shock absorber bodies or coilover assemblies that accommodate this dimension.

Are these springs sold individually or as a set?

These AST Linear Race Springs are sold individually. You will need to purchase the required number of springs for your specific application.

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Specifications

Brand: AST
Part #: AST-140-260-61
UPC: astAST-140-260-61

AST Linear Race Springs - 140mm Length x 260 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 140mm Length x 260 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-140mm-length-x-260-n-mm-rate-x-61mm-id-single-t14-329785
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

This is a single AST Linear Race Spring.
The spring measures 140mm in length.
It has a spring rate of 260 N/mm.
The inner diameter is 61mm.
Constructed from high-tensile steel for durability.

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About this part

Product Details

Starting with a 61mm inner diameter, these AST Linear Race Springs are built for performance applications where precise suspension control is key. The 140mm length combined with a 260 N/mm spring rate offers a firm, responsive feel, ideal for track use or spirited driving where consistent damping and predictable handling are paramount.

These springs are constructed from high-tensile steel, ensuring they can withstand the rigors of repeated compression and extension without losing their intended rate. The linear design means the spring rate remains constant throughout its travel, providing predictable suspension behavior that allows for fine-tuning of your vehicle's handling characteristics. This makes them a solid choice for builders looking to optimize their coilover setups for specific track conditions or driving styles.