What is a linear spring rate?

A linear spring rate means that for every millimeter the spring is compressed, the force it exerts increases by a consistent amount (80 N/mm in this case). This provides predictable and steady suspension behavior.

What does the 51mm ID refer to?

ID stands for Inner Diameter. This 51mm measurement indicates the diameter of the spring's opening, which needs to match the diameter of the coilover shock body it will be installed on.

Is this spring sold individually or as a set?

This product listing is for a single AST Linear Race Spring. If you need a set for your vehicle, you will need to purchase multiple individual springs.

AST Linear Race Spring 200mm 80N/mm 51mm ID AST-200-80-51

Name: AST Linear Race Springs - 200mm Length x 80 N/mm Rate x 51mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-200mm-length-x-80-n-mm-rate-x-51mm-id-single-t14-779691
Price: 103.36 USD
Availability: BackOrder

AST Linear Race Springs - 200mm Length x 80 N/mm Rate x 51mm 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 - 200mm Length x 80 N/mm Rate x 51mm ID - Single

Key Features

Fits vehicles with compatible coilover systems.
Linear spring rate of 80 N/mm for consistent suspension response.
200mm length is a common size for many performance coilover applications.
51mm inner diameter fits a variety of coilover shock bodies.
Designed for performance and track-oriented vehicles.

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Product Details

This is a single AST Linear Race Spring, measuring 200mm in length with a spring rate of 80 Newtons per millimeter and an inner diameter of 51mm. These springs are designed for performance applications where precise suspension control is crucial. The linear rate means the spring compresses at a consistent rate under load, providing predictable handling characteristics.

Constructed with durable materials, this spring is built to withstand the rigors of track use and spirited driving. Its 80 N/mm rate offers a firmer ride compared to stock springs, which can improve vehicle response and reduce body roll during cornering. The 51mm inner diameter is a common size for many coilover systems, making it a versatile option for custom builds or replacements.

When considering a spring upgrade, it's important to match the spring rate to your vehicle's weight and intended use. This 80 N/mm spring is a solid choice for those looking for a noticeable improvement in suspension stiffness and performance feedback.