{"product_id":"h-r-race-spring-linear-id-60mm-length-300mm","title":"H\u0026R Race Spring (Linear) - ID: 60mm \/ Length: 300mm","description":"\u003cp\u003eThe 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.\u003cbr\u003e\u003cbr\u003eThe H\u0026amp;R complete line of 60mm main and tender springs includes main springs ranging from 100mm to 300mm (25.4mm = 1 inch) in length and 30 N to 700 N (N\/mm x 5.709 = pounds\/inch) spring rates. Tender springs vary in length from 40mm to 130mm, with many spring rates available.\u003c\/p\u003e\u003ch3\u003eStandard Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLinear spring rate design for consistent, predictable handling response throughout suspension travel\u003c\/li\u003e\n\u003cli\u003eMade from high-strength special spring steel for maximum durability with reduced weight\u003c\/li\u003e\n\u003cli\u003eMotorsport-developed construction used in professional racing applications for stable performance under extreme loads\u003c\/li\u003e\n\u003cli\u003eOptimized for maximum wheel control and traction, improving cornering stability and chassis balance\u003c\/li\u003e\n\u003cli\u003eConsistent performance with no progressive rate transition, ensuring precise tuning for race damping setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eSpecifications\u003c\/h5\u003e\u003ctable class=\"table table-striped table-primary\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eRF300025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Name\u003c\/td\u003e\n\u003ctd\u003eCoil Spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Shape\u003c\/td\u003e\n\u003ctd\u003eLinear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Length\u003c\/td\u003e\n\u003ctd\u003e300mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate\u003c\/td\u003e\n\u003ctd\u003e143 lb\/in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003eSold Individually\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"H\u0026R","offers":[{"title":"143 lb\/in","offer_id":44915994427452,"sku":"RF300025","price":76.46,"currency_code":"USD","in_stock":true},{"title":"3K (30 N\/mm)","offer_id":40575237816380,"sku":"RF300030","price":76.46,"currency_code":"USD","in_stock":true},{"title":"3.5K (35 N\/mm)","offer_id":40575237849148,"sku":"RF300035","price":76.46,"currency_code":"USD","in_stock":true},{"title":"4K (40 N\/mm)","offer_id":40575237881916,"sku":"RF300040","price":76.46,"currency_code":"USD","in_stock":true},{"title":"4.5K (45 N\/mm)","offer_id":40575237914684,"sku":"RF300045","price":76.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0000\/2183\/products\/h-r-race-spring-linear-id-60mm-length-300mm-1194418098.jpg?v=1767997095","url":"https:\/\/www.springrates.com\/products\/h-r-race-spring-linear-id-60mm-length-300mm","provider":"SPRINGRATES®","version":"1.0","type":"link"}