What is a linear spring rate?

A linear spring rate means the spring's resistance increases at a constant rate as it is compressed. This provides predictable and consistent suspension behavior, which is beneficial for performance driving.

What is this spring typically used for?

This spring is designed for performance applications, often found in track-focused coilover setups. The 140 N/mm rate offers a firmer ride for improved handling and responsiveness.

What does the 61mm ID refer to?

The 61mm ID refers to the inner diameter of the spring. This measurement is important to ensure the spring fits correctly onto the shock absorber body or spring perch of your coilover system.

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-150-140-61
UPC: astAST-150-140-61

AST Linear Race Springs - 150mm Length x 140 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 150mm Length x 140 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-150mm-length-x-140-n-mm-rate-x-61mm-id-single-t14-329802
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: AST Linear Race Springs
Length: 150mm
Spring Rate: 140 N/mm
Inner Diameter: 61mm
Type: Single Linear Race Spring

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

These are AST Linear Race Springs, measuring 150mm in length with a spring rate of 140 N/mm and a 61mm inner diameter. They are designed for performance applications where precise suspension tuning is critical. The linear rate means the spring's resistance increases uniformly as it's compressed, offering predictable handling characteristics.

The 140 N/mm rate is a solid choice for track-focused setups or for drivers seeking a firmer, more responsive feel from their suspension. This spring is often used in conjunction with other suspension components to achieve a balanced and capable handling package. Its 61mm inner diameter is a common size for many coilover systems, making it a versatile option for custom builds or replacements.

When installing these springs, ensure they are properly seated and compatible with your existing or chosen coilover hardware. Proper installation is key to realizing the full performance benefits and ensuring the longevity of your suspension system.