K-Tuned

4-Inch Coilover Spring, 65mm ID, 20.0kgf/mm

$238.00

SKU: Z65-102-200

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Swift Springs Z65-102-200 is a metric coilover spring engineered for optimal performance across a range of vehicles, suitable for both daily driving and track use. Crafted from Swift Springs' proprietary HS5.TW material, this spring offers superior performance compared to traditional silicone chrome steel. The spring is designed with a 4-inch length and a 65mm inner diameter, providing a versatile fit for many coilover systems. It features a spring rate of 20.0kgf/mm (1,120 lbs/inch), with a usable stroke of 50mm (2.0 inches) and a maximum stroke of 55mm (2.2 inches). Swift Springs are known for delivering results through superior material technology. The brand highlights that users will notice a significant difference in performance after installation, including increased traction, seamless weight transfer, and improved ride quality. The springs are color-coordinated based on their inner diameter for easy identification. These springs are sold only in pairs.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandK-Tuned
Part NumberZ65-102-200
CategorySuspension and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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