What is a linear spring rate?

A linear spring rate means the spring's stiffness increases at a constant rate as it's compressed. This results in predictable suspension behavior and a more connected feel to the road, especially during cornering.

What does the 61mm ID refer to?

The 61mm ID refers to the inner diameter of the spring. This measurement is crucial for ensuring the spring fits correctly onto the shock body or perch of your coilover assembly.

Are these springs sold individually?

Yes, these AST Linear Race Springs are sold individually. You will need to purchase the correct quantity for your specific coilover setup, typically two or four springs.

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Specifications

Brand: AST
Part #: AST-120-200-61
UPC: astAST-120-200-61

AST Linear Race Springs - 120mm Length x 200 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 120mm Length x 200 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-120mm-length-x-200-n-mm-rate-x-61mm-id-single-t14-329728
Price: 103.36 USD
Availability: BackOrder

$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 for coilover setups. Offers a 200 N/mm spring rate for improved handling.

Key Features

Fits coilovers with a 61mm inner diameter.
120mm length is suitable for many common coilover applications.
Features a linear spring rate of 200 N/mm for predictable suspension response.
Well-built to withstand repeated compression and extension cycles.

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About this part

Product Details

If you're rebuilding your coilover setup or looking to fine-tune your suspension's response, these AST Linear Race Springs are a solid option. Designed for performance applications, they offer a consistent spring rate that helps manage body roll and improve cornering stability. The linear rate means the spring's stiffness increases predictably as it compresses, giving you a more connected feel to the road.

These springs measure 120mm in length with a 61mm inner diameter, making them compatible with many common coilover bodies. The 200 N/mm rate is a popular choice for track-focused vehicles or those seeking a firmer ride. They are well-built to handle the stresses of repeated compression and extension, ensuring reliable performance over time.