What is a linear spring rate?

A linear spring rate means the spring's resistance increases at a constant rate as it's compressed. For every unit of compression, the force increases by the same amount, making its behavior predictable for tuning.

What does the 61mm ID refer to?

ID stands for Inner Diameter. This measurement indicates the diameter of the coilover shock body or perch that the spring will fit onto. It's important to match this to your existing or planned coilover setup.

What is this spring typically used for?

This spring is intended for performance and racing applications where drivers need precise control over their suspension's response. It's often used in custom coilover builds or as a replacement for worn-out springs on track-focused vehicles.

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Specifications

Brand: AST
Part #: AST-130-220-61
UPC: astAST-130-220-61

AST Linear Race Springs - 130mm Length x 220 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 130mm Length x 220 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-130mm-length-x-220-n-mm-rate-x-61mm-id-single-t14-329757
Price: 103.36 USD
Availability: BackOrder

$103.36

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Key Features

Fits vehicles with 61mm inner diameter coilover perches.
Linear spring rate of 220 N/mm offers consistent damping force.
Spring length is 130mm, suitable for many coilover applications.
Designed for performance and track use.
Single spring included.

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About this part

Product Details

This is a single AST Linear Race Spring, measuring 130mm in length with a spring rate of 220 N/mm and a 61mm inner diameter. These springs are designed for performance applications where precise suspension control is critical.

The linear spring rate means that for every millimeter the spring is compressed, it exerts the same amount of force. This predictable behavior is essential for tuning suspension for specific track conditions or driving styles. The 61mm inner diameter is a common size for many coilover systems, making it a versatile option for builders and racers looking to customize their setup. The 130mm length offers a good balance for achieving desired ride height and suspension travel in many applications.

When building or rebuilding a coilover setup, choosing the right spring rate is crucial for handling and stability. This spring is a well-built component for those seeking to fine-tune their vehicle's suspension performance.