What does a 120 N/mm spring rate mean for my car?

A 120 N/mm spring rate indicates how much force is required to compress the spring by one millimeter. This rate is moderately stiff, offering improved body control and reduced roll during cornering compared to softer springs. It's often used in performance applications where precise handling is a priority.

Can I mix and match these springs with other brands?

While the 61mm inner diameter is a common size, it's best to ensure compatibility with your existing coilover system. Mixing spring brands or rates without proper engineering can lead to unpredictable suspension behavior and should be approached with caution.

What is the advantage of a linear spring rate?

Linear springs offer a consistent force increase as they are compressed. This predictability is beneficial for performance driving, as it allows for more accurate suspension tuning and a more stable feel during hard braking, acceleration, and cornering.

AST Linear Race Spring 100mm 120 N/mm 61mm ID AST-100-120-61

Name: AST Linear Race Springs - 100mm Length x 120 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-100mm-length-x-120-n-mm-rate-x-61mm-id-single-t14-329694
Price: 103.36 USD
Availability: BackOrder

AST Linear Race Springs - 100mm Length x 120 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: 100mm length, 120 N/mm rate, 61mm ID. Offers precise suspension tuning for performance applications.

Key Features

This is a single AST Linear Race Spring.
Features a spring rate of 120 N/mm for controlled suspension response.
Measures 100mm in length.
Has a 61mm inner diameter, a common size for performance coilovers.
Constructed from high-tensile spring steel for durability.

Secure CheckoutFast Shipping631-982-0042

Product Details

With a 120 N/mm spring rate and a 100mm length, these AST Linear Race Springs are built for precise suspension tuning. The 61mm inner diameter is a common size for many performance coilover setups, making them a versatile option for builders looking to fine-tune their vehicle's handling characteristics. These springs are designed to provide a consistent and predictable spring rate throughout their travel, which is crucial for maintaining control during aggressive driving or on track days. The linear design means that for every inch the spring is compressed, it exerts the same amount of force, allowing for predictable suspension response.

Crafted from high-tensile spring steel, these AST springs are built to withstand the rigors of performance driving. The material choice ensures durability and consistent performance over time, resisting fatigue even under heavy load. When setting up a performance suspension, choosing the right spring rate is key to balancing ride comfort with handling capability. A 120 N/mm rate is a moderately stiff rate, suitable for vehicles where improved body control and reduced roll are desired, often paired with performance dampers to achieve optimal damping characteristics. This spring is sold individually, allowing you to purchase the exact quantity needed for your specific application.