What is a linear spring rate?

A linear spring rate means the force required to compress the spring increases at a constant rate. For every millimeter you compress it, the force increases by 280 Newtons. This provides predictable suspension behavior.

What does the 61mm ID refer to?

ID stands for Inner Diameter. The 61mm measurement indicates the diameter of the hole in the center of the spring. This is important for ensuring it fits correctly onto your coilover shock body or perch.

Is this spring sold individually or as a set?

This listing is for a single spring. If you need a set for your vehicle's suspension, you will need to purchase multiple individual springs.

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Specifications

Brand: AST
Part #: AST-120-280-61
UPC: astAST-120-280-61

AST Linear Race Springs - 120mm Length x 280 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 120mm Length x 280 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-120mm-length-x-280-n-mm-rate-x-61mm-id-single-t14-329732
Price: 103.36 USD
Availability: BackOrder

$103.36

On Backorder

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Key Features

This product is a single AST Linear Race Spring.
The spring measures 120mm in length.
It has a spring rate of 280 N/mm.
The inner diameter of the spring is 61mm.
Linear springs offer a consistent spring rate throughout compression.

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About this part

Product Details

This listing is for a single AST Linear Race Spring. You get one coilover spring, measuring 120mm in length with a spring rate of 280 Newtons per millimeter and a 61mm inner diameter. These springs are designed for performance applications where a consistent spring rate is crucial for predictable handling.

Linear race springs like these offer a straightforward spring rate that doesn't change significantly throughout its compression. This predictability is valued in racing and performance driving setups because it allows for more precise tuning of suspension characteristics. The 61mm inner diameter is a common size for many coilover systems, making it a versatile option for builders or those looking to replace individual springs. The 120mm length and 280 N/mm rate are specific choices for achieving a particular ride height and stiffness balance in a performance suspension setup.