{"product_id":"h-r-60mm-id-single-race-spring-length-300mm-spring-rate-35-n-mm-or-200-lbs-inch","title":"H\u0026R 60mm ID Single Race Spring Length 300mm Spring Rate 35 N\/mm or 200 lbs\/inch","description":"H\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.","brand":"H\u0026R","offers":[{"title":"Default Title","offer_id":44384983154907,"sku":"HRSRF300035","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/8809\/8779\/products\/e3120bb35e10ed18689d876546ad8343_8ca650b6-dc21-4800-a2d4-82d1d8f350a1.jpg?v=1698777226","url":"https:\/\/www.functionwerks.com\/products\/h-r-60mm-id-single-race-spring-length-300mm-spring-rate-35-n-mm-or-200-lbs-inch","provider":"FunctionWerks","version":"1.0","type":"link"}