What does a 110 N/mm spring rate mean for my car?

A 110 N/mm spring rate is considered stiff. It means the spring will resist compression more strongly than a softer spring, which can lead to improved handling and reduced body roll during aggressive driving or track use. This rate is best suited for performance-oriented setups.

What is the difference between linear and progressive springs?

Linear springs have a constant spring rate, meaning the force they exert increases proportionally with compression. Progressive springs have a spring rate that changes as they compress, becoming stiffer at higher compression levels. Linear springs offer more predictable and consistent feedback.

What is the inner diameter (ID) of this spring?

This AST linear race spring has an inner diameter of 61mm. It's important to ensure this matches the outer diameter of your coilover shock body for a proper fit.

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Specifications

Brand: AST
Part #: AST-100-110-61
UPC: astAST-100-110-61

AST Linear Race Springs - 100mm Length x 110 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 100mm Length x 110 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-100mm-length-x-110-n-mm-rate-x-61mm-id-single-t14-329693
Price: 103.36 USD
Availability: BackOrder

$103.36

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

Linear race spring with a 110 N/mm spring rate.
Measures 100mm in length.
Features a 61mm inner diameter.
Designed for performance coilover applications.
Well-built to withstand demanding use.

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About this part

Product Details

AST is known for making performance suspension components, and these Linear Race Springs are a solid option for anyone building or rebuilding a performance suspension setup. These springs are designed for use with coilovers, offering a specific rate and length to help you dial in your vehicle's handling characteristics. The 110 N/mm spring rate means that for every millimeter the spring compresses, it exerts 110 Newtons of force back. This is a fairly stiff rate, suitable for track use or spirited driving where precise control is important.

With a 100mm length and a 61mm inner diameter, these springs are intended to fit specific coilover shock bodies. The linear spring rate means the force increases proportionally with compression, providing predictable behavior during cornering and braking. This consistency is key for setting up a suspension that responds reliably to driver inputs. They are well-built to handle the stresses of racing and performance driving.