What does a linear spring rate mean for my suspension?

A linear spring rate means the spring's resistance increases proportionally to how much it's compressed. This offers predictable handling and helps maintain consistent tire contact with the road during cornering and braking.

What is the inner diameter of this spring?

This AST Linear Race Spring has an inner diameter of 61mm. This is a common size for many performance coilover systems, but it's always best to measure your existing spring perch or shock body to ensure compatibility.

What is the spring rate of this AST spring?

This spring has a rate of 110 Newtons per millimeter (N/mm). This is a relatively stiff rate, often chosen for performance applications where reduced body roll and sharper handling are desired.

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Specifications

Brand: AST
Part #: AST-200-110-61
UPC: astAST-200-110-61

AST Linear Race Springs - 200mm Length x 110 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 200mm Length x 110 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-200mm-length-x-110-n-mm-rate-x-61mm-id-single-t14-329854
Price: 103.36 USD
Availability: BackOrder

$103.36

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Key Features

Fits suspension systems requiring a 61mm inner diameter spring.
Features a linear spring rate of 110 N/mm for predictable suspension response.
Has a length of 200mm, suitable for various coilover applications.
Designed for performance and track-oriented suspension setups.

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About this part

Product Details

If you're building or rebuilding a performance suspension setup, especially for track use, selecting the right spring rate is crucial for handling. These AST Linear Race Springs are designed to provide a consistent and predictable spring rate across their travel, which is key for fine-tuning your vehicle's cornering characteristics.

This particular spring measures 200mm in length with a spring rate of 110 Newtons per millimeter, and it has an inner diameter of 61mm. The linear rate means that for every millimeter the spring is compressed, it exerts the same amount of force. This predictability helps suspension tuners achieve a balanced feel, reducing body roll and improving responsiveness during aggressive driving. The 61mm inner diameter is a common size for many performance coilover systems, making it a versatile option for custom builds or replacements.