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. In this case, it's 65 Newtons per millimeter. This predictability is important for fine-tuning suspension performance.

How do I know if this spring will fit my coilovers?

This spring has a 61mm inner diameter. You should measure the inner diameter of your existing coilover springs or the perch they sit on to ensure a proper fit before purchasing.

What is the advantage of a 65 N/mm spring rate?

A 65 N/mm spring rate is stiffer than a typical stock spring, which can lead to improved handling, reduced body roll during cornering, and a more responsive feel. It's often used in performance and track applications.

AST Linear Race Spring 220mm 65 N/mm 61mm ID AST-220-65-61

Name: AST Linear Race Springs - 220mm Length x 65 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-220mm-length-x-65-n-mm-rate-x-61mm-id-single-t14-329864
Price: 103.36 USD
Availability: BackOrder

AST Linear Race Springs - 220mm Length x 65 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 - 220mm Length x 65 N/mm Rate x 61mm ID - Single

Key Features

AST is known for high-performance suspension components.
This is a linear race spring.
Spring length is 220mm.
Spring rate is 65 N/mm.
Inner diameter is 61mm.

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Product Details

AST is a well-known name in the performance suspension world, and these linear race springs are a good example of their focus on track-ready components. This particular spring measures 220mm in length with a spring rate of 65 Newtons per millimeter and a 61mm inner diameter. These specifications make it suitable for applications where a consistent and predictable spring rate is crucial for handling performance.

Linear springs like these offer a constant rate of force increase as they are compressed. This predictability is valued in racing and performance driving because it allows for more precise tuning of suspension geometry and response. The 61mm inner diameter is a common size for many coilover systems, but it's always a good idea to double-check your existing setup to ensure compatibility before ordering.

When building or rebuilding a performance suspension setup, choosing the right spring rate is key to achieving the desired handling characteristics. This 65 N/mm rate is a solid option for those looking to stiffen up their ride for improved cornering and reduced body roll, especially when paired with appropriate damping adjustments on your coilovers.