{"product_id":"eibach-ers-120mm-length-x-60mm-id-coil-over-spring","title":"Eibach ERS 120mm Length x 60mm ID Coil-Over Spring","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e120-60-0140\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050312761\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEibach ERS 120mm Length x 60mm ID Coil-Over Spring 120-60-0140\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThis Eibach ERS coil-over spring measures 120mm in free length with a 60mm inside diameter and 14.0 kg\/mm spring rate, designed for custom coilover strut assemblies in racing and performance applications. It fits any coilover system with matching 60mm ID perches, delivering consistent damping control and precise cornering response. Built for endurance racing, it withstands high-stress track conditions while maintaining shape over repeated cycles.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Rate:\u003c\/strong\u003e 14.0 kg\/mm (784 lb\/in) provides balanced stiffness for aggressive handling and stability under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 120mm free length x 60mm ID x 70mm OD ensures compatibility with standard coilover perches and strut bodies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-tensile chrome-silicon steel alloy resists fatigue for long-term durability in motorsports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing Process:\u003c\/strong\u003e Quadruple shot-peened, heat-treated, tempered, and stress-relieved for reduced breakage risk and consistent performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Design:\u003c\/strong\u003e Precision ground flat and square ends lock securely into perch seats for maximum contact and energy transfer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSpecial order item; lead time typically 3-7 business days from Eibach.\u003c\/li\u003e\n\u003cli\u003eInspect perch diameter and stroke length prior to installation for proper fit.\u003c\/li\u003e\n\u003cli\u003eShips in protective cardboard sleeve to prevent damage; store in dry conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eMatch spring ID to shock perch diameter exactly at 60mm; preload 10-20mm maximum.\u003c\/li\u003e\n\u003cli\u003eCompatible with most adjustable coilover bodies like BC Racing, Tein, and Fortune Auto.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003eCoilover Systems\u003c\/td\u003e\n\u003ctd\u003e60mm ID Perch Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Eibach?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTrusted by motorsports teams in Formula Drift, NASA, and SCCA since 1951.\u003c\/li\u003e\n\u003cli\u003eCNC-wound springs ensure load consistency within 3% tolerance.\u003c\/li\u003e\n\u003cli\u003eGerman engineering meets ISO 9001 standards for precision and reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this spring fit my coilover setup?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, if your coilover perch is 60mm diameter and allows 120mm spring length with adequate stroke; common in BC Racing MR Series, D2 Racing, and similar kits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material and finish does it have?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Made from premium chrome-silicon steel with black powder coat finish for corrosion resistance; nitrogen-infused for extra strength.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Eibach Pro-Racer limited lifetime warranty against manufacturing defects when used in approved applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e Special order - ships within 3-7 business days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Protective sleeve in 6 x 6 x 5 inch box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.21 lbs (0.55 kg)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":41008727752783,"sku":"EIB120-60-0140","price":72.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/products\/eibach-ers-120mm-length-x-60mm-id-coil-over-spring-eibach.jpg?v=1766042129","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-120mm-length-x-60mm-id-coil-over-spring","provider":"Black Ops Auto Works","version":"1.0","type":"link"}