What is a linear spring rate?

A linear spring rate means the force required to compress the spring increases at a constant rate. For every millimeter the spring is compressed, the force increases by the same amount, providing predictable suspension response.

What does the 61mm ID refer to?

The 61mm ID refers to the inner diameter of the spring. This measurement is important for ensuring the spring fits correctly onto the shock absorber body or spring perch of a coilover system.

Is this spring sold individually?

Yes, this product listing is for a single AST linear race spring. If you need a pair or a full set, you will need to order the appropriate quantity.

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Specifications

Brand: AST
Part #: AST-250-100-61
UPC: astAST-250-100-61

AST Linear Race Springs - 250mm Length x 100 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 250mm Length x 100 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-250mm-length-x-100-n-mm-rate-x-61mm-id-single-t14-329886
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.

Key Features

This is a single AST linear race spring.
Spring measures 250mm in length.
Features a spring rate of 100 N/mm.
Has a 61mm inner diameter.
Designed for coilover applications.

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About this part

Product Details

AST is known for making performance suspension components. This linear race spring is designed for coilover setups where precise spring rates are critical for handling. With a length of 250mm and a spring rate of 100 N/mm, it offers a firm, consistent response for track or spirited driving.

The 61mm inner diameter means this spring is intended for specific coilover body sizes, ensuring a snug fit and proper function within the suspension assembly. Its linear rate means the spring force increases proportionally to compression, providing predictable behavior under load. This makes it a solid option for builders looking to fine-tune their vehicle's suspension for improved cornering and stability.