What is a linear rate spring?

A linear rate spring increases its force output directly in proportion to how much it is compressed. This means the spring's stiffness remains constant throughout its travel, offering predictable suspension response.

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 a coilover system.

What is the purpose of a 150mm length spring?

The 150mm length is a physical dimension of the spring. This length, along with the spring rate and inner diameter, determines how the spring will fit and function within a specific suspension setup.

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Specifications

Brand: AST
Part #: AST-150-130-61
UPC: astAST-150-130-61

AST Linear Race Springs - 150mm Length x 130 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 150mm Length x 130 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-150mm-length-x-130-n-mm-rate-x-61mm-id-single-t14-329801
Price: 103.36 USD
Availability: BackOrder

$103.36

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AST Linear Race Springs - 150mm Length x 130 N/mm Rate x 61mm ID - Single. A well-built spring for performance suspension setups.

Key Features

This product is a single AST Linear Race Spring.
The spring measures 150mm in length.
It has a spring rate of 130 N/mm.
The inner diameter is 61mm.
This is a linear rate spring, offering consistent force increase with compression.

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About this part

Product Details

This listing is for a single AST Linear Race Spring. It measures 150mm in length, has a spring rate of 130 Newtons per millimeter, and an inner diameter of 61mm. These springs are designed for performance applications where a consistent spring rate is crucial for predictable handling.

Linear rate springs like these offer a straightforward spring behavior, meaning the force increases directly in proportion to how much the spring is compressed. This makes them a popular choice for track cars or performance street setups where drivers want to feel exactly how the suspension is responding. The 61mm inner diameter is a common size for many coilover systems, making it a versatile option for custom builds or replacements.