{"product_id":"handr-rf180050","title":"H\u0026R RF180050 - 60mm ID Single Race Spring Length 180mm Spring Rate 50 N\/mm or 286 lbs\/inch","description":"\u003cp\u003eH\u0026amp;R RF180050 - 60mm ID Single Race Spring Length 180mm Spring Rate 50 N\/mm or 286 lbs\/inch\u003c\/p\u003e\u003cp\u003eH\u0026amp;R 2.50\" I.D. Race Springs are made with extremely high tensile strength wire alloy which allows the use of a thinner wire. Manufactured using advanced materials and precision technology in Germany, H\u0026amp;R 2.50\" I.D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel. For any given spring rate, they are on average 15% lighter and have 10% more travel than competitors' springs. Main springs range from 6\" to 18\" in length and are available in a wide selection of spring rates.  TENDER SPRINGS: H\u0026amp;R 2.50\" I.D. Tender Springs are made of trapezoidal (flat rather than round) spring wire and have a low block height for maximum travel. These springs are designed for demanding motorsport environments, and like all H\u0026amp;R springs, have been pre-blocked at the factory so they will never set or sag. The H\u0026amp;R 60mm I.D. Race Spring line is crafted from special lightweight (hf) 54SiCr6 spring steel and is the most comprehensive 60mm I.D. Race Program in the U.S. If you own a Porsche GT3 or another Euro spec car, our range of 60mm I.D. Race Springs has you covered. With hundreds of main springs and tender springs available, H\u0026amp;R has the lengths and rates necessary for optimal tuning and setup. The H\u0026amp;R complete line of 60mm I.D. main springs range from 80mm to 300mm (25.4mm = 1 inch) in length and 25 N to 700 N (N\/mm x 5.709 = pounds\/inch) spring rates.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWide variety of spring lengths and spring rates\u003c\/li\u003e\n\u003cli\u003eTender springs available\u003c\/li\u003e\n\u003cli\u003eAllows custom tuning of your suspension\u003c\/li\u003e\n\u003cli\u003e(hf) 54SiCr6 Spring Steel, Lighter Weight, More Spring Travel\u003c\/li\u003e\n\u003cli\u003emade in Germany\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFree Length\u003c\/strong\u003e: \u003cspan\u003e180\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRate\u003c\/strong\u003e: \u003cspan\u003e50\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"H\u0026R","offers":[{"title":"Default Title","offer_id":47326271668362,"sku":"HR-RF180050","price":99.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/0619\/2778\/files\/0-800_normalized_4ff435d3-d384-4e9a-a071-abd61e1be24f.jpg?v=1776736497","url":"https:\/\/www.onlyinstock.com\/products\/handr-rf180050","provider":"Only In Stock","version":"1.0","type":"link"}