{"product_id":"eibach-ers-2-50-in-id-linear-tender-spring","title":"Eibach ERS 2.50 in. ID Linear Tender Spring","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e0175.250.0250\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050100443\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEibach ERS 2.50 in. ID Linear Tender Spring - 250 lb\/in Rate\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eEibach ERS 2.50 in. ID Linear Tender Spring delivers a precise 250 lb\/in rate for coilover setups in race cars, dragsters, road racing vehicles, and performance street applications. This universal component fits most adjustable coilover struts with matching ID. It provides smooth initial compliance before engaging the main spring, improving bump absorption and chassis control.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Rate:\u003c\/strong\u003e 250 lb\/in for predictable suspension response and consistent handling lap after lap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 2.50 in. inner diameter, 3.54 in. free height, 0.187 in. wire diameter for direct coilover compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e High-tensile chrome silicon steel, shot-peened and preset for fatigue resistance under high loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerances:\u003c\/strong\u003e Tightest industry standards from series production ensure rate consistency within 1%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e 6.2 total coils (4.1 active), 1.44 in. block height for full travel in compact setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSpring weight 1.69 lbs; pair recommended for front or rear coilover applications.\u003c\/li\u003e\n\u003cli\u003eStore in dry conditions to maintain preset characteristics.\u003c\/li\u003e\n\u003cli\u003eSpecial order item; verify stock before ordering.\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\u003eConfirm coilover inner diameter measures exactly 2.50 in. for proper fit.\u003c\/li\u003e\n\u003cli\u003eUse with compatible perches and bump stops; torque hardware to manufacturer specs.\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\u003e-\u003c\/td\u003e\n\u003ctd\u003eCoilover Assemblies\u003c\/td\u003e\n\u003ctd\u003e2.50\" ID Tenders\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\u003eProven in professional motorsports including NHRA, NASA, and SCCA racing.\u003c\/li\u003e\n\u003cli\u003eSeries production process yields repeatable rates and minimal variation.\u003c\/li\u003e\n\u003cli\u003eEngineered for endurance with over 50 years of suspension expertise.\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 Does this fit specific coilover brands?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, compatible with most brands like QA1, AFCO, and Penske using 2.50 in. ID struts; measure your assembly to confirm.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is used?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Dual-layer chrome silicon steel with epoxy coating, heat-treated, shot-peened, and preloaded for 200,000+ cycle life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Limited lifetime warranty against manufacturing defects when used in approved applications; excludes abuse or improper installation.\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 \/ USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Protective tube inside cardboard box, 6 x 4 x 4 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.69 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":42057206005839,"sku":"EIB0175.250.0250","price":68.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/eibach-ers-2_50-in_-id-linear-tender-spring-eibach.jpg?v=1766042727","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-2-50-in-id-linear-tender-spring","provider":"Black Ops Auto Works","version":"1.0","type":"link"}