{"product_id":"eibach-ers-70mm-id-linear-tender-spring-eib40-70-0030","title":"Eibach ERS 70mm ID Linear Tender Spring EIB40-70-0030","description":"Renowned for our extensive catalog of over 1,500 precision engineered race springs. Eibach race springs offer unparalled customization and performance optimization across a wide spectrum of racing applications. From shocks to pull-bars we offer a wide range of springs solutions to fine tune the handling dynamics of your race car.\nIndividual Motorsport Spring\n\u003cul\u003e\n  \u003cli\u003eProvides a Softer Initial Rate When Paired with a Main Spring\u003c\/li\u003e\n  \u003cli\u003eHighest Linearity and Guaranteed Consistency\u003c\/li\u003e\n  \u003cli\u003eAvailable in Linear or Progressive Rates\u003c\/li\u003e\n  \u003cli\u003eEach Spring Individually Tested\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Eibach ERS 70mm ID Linear Tender Spring is an individually tested motorsport spring designed to refine suspension performance in demanding racing applications. As part of Eibach’s extensive catalog of precision-engineered race springs, this tender spring helps chassis builders and race teams fine-tune handling dynamics across a wide range of vehicle setups.\u003c\/p\u003e\u003cp\u003eWhen paired with a main spring, the Eibach ERS tender spring provides a softer initial spring rate. This characteristic can improve suspension compliance and help maintain spring contact during unloaded or transitional suspension conditions. The linear rate delivers predictable, consistent performance throughout the spring’s working range, making it a practical choice for applications where repeatable suspension behavior is essential.\u003c\/p\u003e\u003cp\u003eEvery spring is individually tested to support reliable quality and rate consistency. The Eibach ERS 70mm ID Linear Tender Spring is intended for motorsport suspension systems and may be used with compatible shocks, coilover assemblies, or other racing suspension components. Confirm spring dimensions, rate requirements, installed height, and suspension compatibility before installation. This product is supplied as one individual spring. No vehicle-specific fitment data was provided.\u003c\/p\u003e\u003ch3\u003eProduct Specifications and Technical Data\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Eibach\u003c\/li\u003e\n\u003cli\u003ePart Number: EIB40-70-0030\u003c\/li\u003e\n\u003cli\u003eProduct Type: Motorsport tender spring\u003c\/li\u003e\n\u003cli\u003eSpring Rate Style: Linear\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 70 mm\u003c\/li\u003e\n\u003cli\u003eApplication: Racing and performance suspension systems\u003c\/li\u003e\n\u003cli\u003eTesting: Individually tested\u003c\/li\u003e\n\u003cli\u003eQuantity: One spring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOne Eibach ERS 70mm ID Linear Tender Spring\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSofter Initial Rate: Provides a softer initial response when paired with a compatible main spring, helping improve suspension compliance during transitional movement.\u003c\/li\u003e\n\u003cli\u003eLinear Spring Rate: Delivers predictable and consistent force characteristics throughout the spring’s operating range.\u003c\/li\u003e\n\u003cli\u003eIndividually Tested: Each Eibach spring is tested to support dependable quality and repeatable motorsport performance.\u003c\/li\u003e\n\u003cli\u003eMotorsport Tuning Flexibility: Designed to help racing applications fine-tune handling dynamics with compatible shocks and suspension components.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":51396141121788,"sku":"40-70-0030","price":109.22,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/a2a56e74a3dd5ba5215e512d1fe8675aL_9b4e9b6f-b8ca-4ba5-9758-e5b315a2de5f.jpg?v=1790365195","url":"https:\/\/diycustoms.store\/products\/eibach-ers-70mm-id-linear-tender-spring-eib40-70-0030","provider":"diycustoms.store","version":"1.0","type":"link"}