What does the spring rate (9.0kgf/mm) mean for my car's ride?

A spring rate of 9.0kgf/mm indicates a firmer spring compared to most factory setups. This means it will resist compression more strongly, leading to less body roll in corners and a more responsive feel. It can also result in a slightly stiffer ride over bumps.

What is the inside diameter and length of this spring?

This Cusco coil spring has an inside diameter of 65mm and a length of 180mm. These dimensions are important for ensuring it fits correctly onto your coilover's spring perch.

Does this spring come with any other hardware?

This product is for the coil spring only. Any necessary hardware, such as spring perches or collars, would typically be part of your existing coilover assembly or would need to be purchased separately.

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: Cusco
Part #: 065 180 09
UPC: 4996338020055

Cusco Coil Spring 65mm ID 180mm Length 9.0kgf/mm

Name: Cusco Coil Spring 65mm ID 180mm Length 9.0kgf/mm
Brand: Cusco
SKU: cusco-cusco-coil-spring-65mm-id-180mm-length-9-0kgf-mm-t14-404242
Price: 86.40 USD
Availability: InStock

$86.40

Only 4 left in stock

Cusco Coil Spring 65mm ID 180mm Length 9.0kgf/mm. A well-built replacement spring for your coilovers.

Key Features

Fits coilovers using 65mm ID springs.
Spring length is 180mm.
Features a spring rate of 9.0kgf/mm for improved handling.
Well-built by Cusco for reliable performance.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

This is a Cusco coil spring, measuring 65mm inside diameter and 180mm in length. It's designed with a spring rate of 9.0kgf/mm, which is a common specification for performance-oriented suspension setups. If you're rebuilding or tuning your coilovers, having a precisely rated spring like this can make a notable difference in how your car handles.

Cusco is known for making solid suspension components, and this spring is no exception. The 9.0kgf/mm rate offers a firmer ride than stock, which can improve body control during spirited driving or track use. It's a direct replacement for many coilover systems that use the 65mm ID spring perch, making installation straightforward if you're already familiar with coilover assembly.