What does a linear spring rate mean for my suspension?

A linear spring rate means the spring's resistance increases at a constant rate as it's compressed. This offers predictable handling characteristics, making it easier to tune your suspension for specific driving conditions.

How do I know if this 61mm ID spring will fit my coilovers?

This spring has a 61mm inner diameter, which is a common size for many performance coilover systems. It's best to measure the inner diameter of your existing springs or the spring perch on your coilover body to ensure compatibility.

What is the advantage of a 100mm spring length?

The 100mm length is a more compact spring size. This can be beneficial in applications where space is limited, allowing for a shorter overall coilover assembly or more room for other suspension components.

FEATURED BRAND = COVERKING CHECK OUT COVERKING NOW →

Questions? Call Us:631-982-0042

M-F 8AM-4PM ET

Trusted Since 1957

Est. 1957

Specifications

Brand: AST
Part #: AST-100-340-61
UPC: astAST-100-340-61

AST Linear Race Springs - 100mm Length x 340 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 100mm Length x 340 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-100mm-length-x-340-n-mm-rate-x-61mm-id-single-t14-329709
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

Fits vehicles with 61mm inner diameter coilover applications.
Features a linear spring rate of 340 N/mm for consistent suspension response.
Measures 100mm in length, suitable for compact coilover designs.
Single spring sold individually.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

This is a single AST Linear Race Spring, measuring 100mm in length with a spring rate of 340 N/mm and a 61mm inner diameter. These springs are designed for performance applications where precise suspension control is critical.

The linear spring rate means that for every millimeter the spring is compressed, it exerts the same amount of force. This predictable behavior is essential for tuning suspension for specific track conditions or driving styles. The 61mm inner diameter is a common size for many coilover systems, making it a versatile option for builders and racers looking to customize their setup. Its 100mm length offers a compact profile, suitable for applications where space is limited.

When selecting springs, consider how the rate will affect your vehicle's handling. A higher rate like this 340 N/mm spring will result in a stiffer ride and more responsive cornering, but it's important to match it with appropriate damping to avoid a harsh feel.