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

A linear spring rate means the force the spring exerts increases in direct proportion to how much it's compressed. This offers predictable and consistent suspension behavior, which is beneficial for performance driving where precise control is important.

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 or shock body to ensure compatibility.

Are these springs sold individually or as a set?

These AST Linear Race Springs are sold individually. If you are replacing springs on a coilover setup, it is generally recommended to replace them in pairs for each axle to maintain balanced handling.

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Specifications

Brand: AST
Part #: AST-220-80-61
UPC: astAST-220-80-61

AST Linear Race Springs - 220mm Length x 80 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 220mm Length x 80 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-220mm-length-x-80-n-mm-rate-x-61mm-id-single-t14-329867
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.

Key Features

Fits vehicles with 61mm inner diameter coilover setups.
Linear spring rate of 80 N/mm offers predictable suspension response.
Spring length is 220mm, suitable for various performance coilover applications.
Designed for racing and performance-oriented suspension tuning.
Constructed for consistent performance under demanding conditions.

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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 essential for predictable vehicle dynamics. The linear rate means that as the spring compresses, the force it applies increases proportionally, offering a straightforward and understandable spring behavior that many racers prefer.

With a length of 220mm and an 80 N/mm rate, these springs are built to work within specific suspension setups, often paired with compatible dampers to achieve a desired ride height and stiffness. The 61mm inner diameter is a common size for many performance coilovers, making them a versatile option for custom builds or replacements. AST is known for producing well-built suspension components, and these springs are no exception, offering a solid option for those seeking improved handling characteristics.