What does a linear spring rate mean for my car's handling?

A linear spring rate means the force the spring exerts increases directly with compression. This offers predictable suspension response, which is beneficial for performance driving where consistent feedback is important.

What is the approximate spring rate in pounds per inch?

This spring has a rate of 40 N/mm, which is approximately equivalent to 228 pounds per inch. This provides a firmer ride compared to stock suspension.

What is the inner diameter of this spring?

The inner diameter of this AST spring is 61mm. This is a common size for many performance coilover shock bodies.

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Specifications

Brand: AST
Part #: AST-200-40-61
UPC: astAST-200-40-61

AST Linear Race Springs - 200mm Length x 40 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 200mm Length x 40 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-200mm-length-x-40-n-mm-rate-x-61mm-id-single-t14-329841
Price: 103.36 USD
Availability: BackOrder

$103.36

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Key Features

This is a single AST Linear Race Spring.
Spring measures 200mm in length.
Features a linear spring rate of 40 N/mm (approximately 228 lbs/in).
Has an inner diameter of 61mm.
Designed for performance and track applications.

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About this part

Product Details

When you're rebuilding your suspension or looking to fine-tune your vehicle's handling for track use, selecting the right coilover springs is crucial. These AST Linear Race Springs are designed for performance applications where consistent spring rates are paramount. The linear rate means that as the spring compresses, the force it applies increases proportionally, offering predictable suspension behavior under load.

This particular spring measures 200mm in length with a spring rate of 40 N/mm, which translates to about 228 lbs/in. The 61mm inner diameter is a common size for many performance coilover systems, making it a versatile option for custom builds or replacements. The well-built construction ensures it can handle the rigors of spirited driving and repeated compression cycles without losing its intended rate.