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

A linear spring rate means the spring's resistance increases at a constant rate as it's compressed. This predictability helps in tuning suspension geometry for balanced handling 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 aftermarket coilover systems.

Is this spring sold individually or as a set?

This product listing is for a single AST Linear Race Spring. If you are building a coilover system, you will need to purchase the appropriate number of springs for your application.

AST Linear Race Spring 150mm 170 N/mm 61mm ID AST-150-170-61

Name: AST Linear Race Springs - 150mm Length x 170 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-150mm-length-x-170-n-mm-rate-x-61mm-id-single-t14-329805
Price: 103.36 USD
Availability: BackOrder

AST Linear Race Springs - 150mm Length x 170 N/mm Rate x 61mm ID - Single

$103.36

On Backorder

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 - 150mm Length x 170 N/mm Rate x 61mm ID - Single

Key Features

Fits vehicles with 61mm inner diameter coilover bodies.
Features a linear spring rate of 170 N/mm for consistent suspension response.
Has a length of 150mm, suitable for many performance coilover applications.
Designed for performance and track use where precise spring rates are important.

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Product Details

When you're building a performance suspension setup, the right spring rate is crucial for handling and ride control. This AST Linear Race Spring is designed for enthusiasts who need a specific, consistent spring rate for their coilover system. With a 150mm length, 170 N/mm rate, and a 61mm inner diameter, it offers a well-defined spring action for track or spirited driving applications.

This spring is constructed to maintain its rate under load, providing predictable feedback from your suspension. The linear rate means that for every inch the spring is compressed, it resists with a consistent amount of force, which is key for tuning suspension geometry and achieving balanced handling. Its 61mm inner diameter is a common size for many aftermarket coilover bodies, making it a versatile option for custom builds or replacements.

If you're looking to fine-tune your vehicle's cornering ability or dial in a specific suspension feel, choosing the correct spring rate is a fundamental step. This AST spring offers a solid option for those who understand the importance of spring rates in performance tuning.