{"product_id":"metric-coilover-spring-60mm-id-x-4-inch-30-0kgf-mm","title":"Metric Coilover Spring 60mm ID x 4-Inch, 30.0kgf\/mm","description":"Available with a 4-inch length and a 60mm inner diameter, this spring is engineered for compatibility with various coilover systems.\n\nConstructed from K-Tuned's proprietary HS5.TW material, these springs are built to withstand demanding conditions, whether for everyday driving or rigorous track use. The specific spring rate for this model is 30.0kgf\/mm, which translates to approximately 1,680 lbs\/inch, providing a firm yet responsive ride.\n\nKey specifications include a usable stroke of 43mm (1.7 inches) and a maximum stroke of 50mm (2.0 inches), allowing for optimal suspension travel and performance tuning. These metric coilover springs are sold exclusively in pairs, ensuring balanced performance for your vehicle's suspension setup.","brand":"K-Tuned","offers":[{"title":"Default Title","offer_id":52869718114616,"sku":"Z60-102-300","price":238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/688005334.webp?v=1787917910","url":"https:\/\/store.motormia.co\/products\/metric-coilover-spring-60mm-id-x-4-inch-30-0kgf-mm","provider":"MOTORMIA","version":"1.0","type":"link"}