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

A linear spring rate means the force required to compress the spring increases at a constant rate. This provides predictable suspension behavior, making it easier to feel and control the vehicle's response 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 performance coilovers, but it's always best to verify it matches your existing suspension components.

What is the purpose of a 300mm spring length?

The 300mm length is a specific measurement designed to fit within certain suspension travel ranges. It's important to ensure this length is compatible with your vehicle's suspension geometry and desired ride height.

Specifications

Brand: AST
Part #: AST-300-130-61
UPC: astAST-300-130-61

AST Linear Race Springs - 300mm Length x 130 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 300mm Length x 130 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-300mm-length-x-130-n-mm-rate-x-61mm-id-single-t14-329910
Price: 103.36 USD
Availability: BackOrder

$103.36

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AST Linear Race Springs: 300mm length, 130 N/mm rate, 61mm ID. Built for precise suspension tuning.

Key Features

Fits vehicles with 61mm inner diameter suspension setups.
Features a 130 N/mm spring rate for controlled suspension response.
Spring length measures 300mm, suitable for specific suspension travel requirements.
Constructed from high-tensile steel for durability and consistent performance.
Linear spring rate offers predictable handling characteristics.

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About this part

Product Details

These AST Linear Race Springs are built with a 61mm inner diameter, a common size for many performance suspension setups. The 130 N/mm spring rate offers a firm, controlled response, ideal for drivers looking to fine-tune their vehicle's handling characteristics. At 300mm in length, these springs are designed to work within specific suspension travel parameters, helping to maintain consistent wheel control under demanding driving conditions.

Constructed from high-tensile steel, these springs are made to withstand repeated compression and extension cycles without significant fatigue. The linear spring rate means that as the spring is compressed, the force increases proportionally, providing predictable suspension behavior. This makes them a solid choice for track day cars or any vehicle where precise suspension feedback is important.