What is a linear spring rate?

A linear spring rate means that the force the spring exerts increases at a constant rate as it is compressed. For every millimeter of compression, the spring pushes back with the same amount of force.

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, which needs to match the diameter of the shock absorber body or perch it will be mounted on.

Does this product include more than one spring?

No, this product listing is for a single AST Linear Race Spring. If you need a pair or a full set, you will need to order the appropriate quantity.

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Specifications

Brand: AST
Part #: AST-250-50-61
UPC: astAST-250-50-61

AST Linear Race Springs - 250mm Length x 50 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 250mm Length x 50 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-250mm-length-x-50-n-mm-rate-x-61mm-id-single-t14-329876
Price: 103.36 USD
Availability: BackOrder

$103.36

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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 - 250mm Length x 50 N/mm Rate x 61mm ID - Single. Get a single, well-built spring for your coilover setup.

Key Features

This product is a single AST Linear Race Spring.
The spring measures 250mm in length.
It has a spring rate of 50 N/mm.
The inner diameter is 61mm.
This is a linear rate spring, offering consistent force application.

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About this part

Product Details

This product is a single AST Linear Race Spring, measuring 250mm in length with a spring rate of 50 Newtons per millimeter and a 61mm inner diameter. It's designed for use in coilover suspension systems where a specific, linear spring rate is crucial for performance tuning.

Linear springs offer a consistent rate of force application throughout their compression range. This means that for every millimeter the spring is compressed, it exerts the same amount of force. This predictability is highly valued in racing and performance applications, allowing for more precise suspension tuning and predictable handling characteristics. The 61mm inner diameter is a common size for many coilover applications, making it a versatile option for builders and tuners looking to customize their suspension setup.