{"product_id":"4-inch-coilover-spring-65mm-id-20-0kgf-mm","title":"4-Inch Coilover Spring, 65mm ID, 20.0kgf\/mm","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.\n\nThe 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).\n\nSwift 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.","brand":"K-Tuned","offers":[{"title":"Default Title","offer_id":52869723816248,"sku":"Z65-102-200","price":238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/688008522.webp?v=1787917938","url":"https:\/\/store.motormia.co\/products\/4-inch-coilover-spring-65mm-id-20-0kgf-mm","provider":"MOTORMIA","version":"1.0","type":"link"}