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 provides predictable and consistent suspension response, 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 for ensuring the spring fits correctly onto the shock body or perch of your coilover assembly.

Are these springs sold individually?

Yes, this listing is for a single AST Linear Race Spring. If you are rebuilding a full set of coilovers, you will need to order the appropriate quantity for your application.

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Specifications

Brand: AST
Part #: AST-120-60-61
UPC: astAST-120-60-61

AST Linear Race Springs - 120mm Length x 60 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 120mm Length x 60 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-120mm-length-x-60-n-mm-rate-x-61mm-id-single-t14-329714
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.

AST Linear Race Springs: 120mm length, 60 N/mm rate, 61mm ID. Ideal for custom suspension builds.

Key Features

Linear spring rate of 60 N/mm for consistent damping.
Spring measures 120mm in length.
Features a 61mm inner diameter, common for many coilover systems.
Designed for performance and track applications.
Well-built for durability under demanding conditions.

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About this part

Product Details

These AST Linear Race Springs are built with a 60 N/mm spring rate and measure 120mm in length with a 61mm inner diameter. This specific combination makes them a solid choice for builders looking to fine-tune their suspension setup for track or performance driving. The linear rate means the spring's resistance increases consistently as it's compressed, offering predictable handling characteristics.

Constructed from durable materials, these springs are designed to withstand the rigors of performance driving. The 61mm inner diameter is a common size for many aftermarket coilover applications, making them versatile for custom builds or replacements. When selecting springs, matching the rate to your vehicle's weight and intended use is crucial for optimal performance and ride quality.