{"product_id":"65mm-id-x-4-inch-coilover-spring-18-kgf-mm","title":"65mm ID x 4-Inch Coilover Spring 18 kgf\/mm","description":"These springs boast a 65mm inner diameter and a 4-inch length, paired with a 18 kgf\/mm spring rate, suitable for a wide spectrum of automotive applications.\n\nManufactured using Swift's proprietary HS5.TW material, these springs are designed to be superior to silicone chrome steel. This advanced material allows for fewer coils, resulting in reduced un-sprung weight and an increased suspension stroke. The usable stroke is 2.0 inches, with a maximum stroke of 2.2 inches, providing enhanced control and responsiveness.\n\nRecognizing the prevalence of the metric system in sport compact and road racing, Swift developed this metric line to simplify selection and cater specifically to these markets. The springs are available in various configurations, with inner diameters from 60mm to 70mm, lengths from 127mm (5 inches) to 280mm (11 inches), and spring rates spanning from 3kg to 34kg.","brand":"K-Tuned","offers":[{"title":"Default Title","offer_id":52869723455800,"sku":"Z65-102-180","price":238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/688006398.webp?v=1787917936","url":"https:\/\/store.motormia.co\/products\/65mm-id-x-4-inch-coilover-spring-18-kgf-mm","provider":"MOTORMIA","version":"1.0","type":"link"}