{"product_id":"eibach-suspension-springs-2-5-i-d","title":"Eibach Coilover Spring - 2.5\" I.D.","description":"\u003cp class=\"p1\"\u003eThe Eibach 2.5\" I.D. Coilover Spring is designed specifically for 2.0 coilover shocks used in off-road suspension systems where performance, durability, and consistent spring rates are critical. Whether you're building a rock crawler, trail rig, UTV, lightweight buggy, overland vehicle, or custom suspension project, these springs provide the control and predictability needed to maximize suspension performance. Available in multiple spring lengths and spring rates, Eibach coilover springs allow builders to fine-tune ride height, suspension travel, handling characteristics, and overall vehicle balance.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eAs part of the Eibach Racing Off-Road (ERO) spring system, these springs are manufactured from premium spring steel and engineered to maintain accurate spring rates under repeated suspension cycling and harsh off-road conditions. The lightweight design helps maximize available wheel travel while maintaining excellent spring consistency throughout the suspension stroke. Whether used in a single-rate or dual-rate coilover setup, Eibach springs deliver race-proven performance trusted by off-road racers and recreational wheelers alike.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eIncludes\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e(1) Eibach 2.5\" I.D. Coilover Spring\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eSelected Spring Rate\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eSelected Spring Length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eSold Individually\u003c\/b\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary class=\"details__header\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eBrand: \u003c\/b\u003eEibach\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eInside Diameter: \u003c\/b\u003e2.0\"\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003e3.0″ ID Length Range:\u003c\/b\u003e 8\" - 18\"\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eSpring Rates Available: \u003c\/b\u003e80 lb\/in – 500 lb\/in\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eFinish: \u003c\/b\u003eSilver Powder Coat\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eSpring Type: \u003c\/b\u003eCoilover Suspension Spring\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eCompatible with: \u003c\/b\u003e2.0\" Coilover Shocks\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eSuitable for: \u003c\/b\u003eSingle-Rate and Dual-Rate Coilover Systems\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eDesigned for: \u003c\/b\u003eOff-Road and Racing Applications\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eDesign: \u003c\/b\u003eRace-Proven ERO (Eibach Racing Off-Road)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Chrome Silicon Steel (CrS)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eManufacturing Process:\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003eCold Wound\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eHeat Treated\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eShot Peened\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eEnds:\u003c\/b\u003e Squared \u0026amp; Ground at Both Ends\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cb\u003eCoating:\u003c\/b\u003e Protective Silver Powder Coat\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\u003cb\u003eIndividually Rate Tested\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary class=\"details__header\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003eFits 2.0 Coilover Shock Applications\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eCompatible with most 2.0 off-road coilover shocks utilizing 2.5\" I.D. springs\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eCommonly used on:\u003c\/li\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003eRock Crawlers\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eTrail Rigs\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eUTVs\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eLightweight Buggies\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eOverland Vehicles\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eCustom Off-Road Builds\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eRecreational Off-Road Vehicles\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eSmall Tube Chassis Projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eVerify spring length, spring rate, and hardware compatibility before ordering.\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary class=\"details__header\"\u003e\u003cstrong\u003eTech Insight\u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eWill these springs fit any 2.0 coilover shock?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThese springs fit most 2.0 coilover shocks that use a 2.5\" inside diameter spring. Always verify your shock manufacturer's spring specifications before ordering.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eWhat does 2.5\" I.D. mean?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThe 2.5\" I.D. measurement refers to the inside diameter of the spring. This dimension must match your coilover shock's spring hardware and retainers.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eHow do I determine the correct spring rate?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eSpring rate selection depends on vehicle weight, suspension geometry, motion ratio, desired ride height, and intended use. Heavier vehicles typically require higher spring rates than lighter vehicles. You can watch our tutorial on \u003ca href=\"https:\/\/wideopendesign.com\/blogs\/tech-videos\/mastering-the-math-how-to-calculate-spring-rates-without-a-scale\"\u003e\u003cspan class=\"s1\"\u003eCalculating Spring Rates\u003c\/span\u003e\u003c\/a\u003e for more information.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eCan these springs be used in a dual-rate coilover setup?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eYes. Eibach 2.5\" coilover springs are commonly used in both single-rate and dual-rate suspension systems for improved suspension tuning flexibility.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eAre these springs sold individually?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eYes. Springs are sold individually. Most vehicles require two springs per axle, while dual-rate coilover systems may require four springs per axle.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eAre Eibach Off-Road Coilover Springs durable?\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eYes. ERO springs are engineered to maintain rate and free length even after repeated full compression cycles. They are designed to handle:\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li2\"\u003eExtreme suspension cycling\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eHigh heat environments\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eHeavy unsprung weight\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eContinuous race abuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eAre these coilover springs block-stable?\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eYes. In dual-rate setups, the tender spring is often designed to fully compress (block) to transition into the main spring. ERO springs are built to:\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li2\"\u003eSafely block repeatedly\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eMaintain consistent transition points\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eResist sagging or rate loss\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e","brand":"Eibach","offers":[{"title":"8\" \/ 150lb\/in.","offer_id":56641901985958,"sku":"EIB0800.250.0150S","price":82.0,"currency_code":"USD","in_stock":true},{"title":"8\" \/ 200lb\/in.","offer_id":56641902051494,"sku":"EIB0800.250.0200S","price":82.0,"currency_code":"USD","in_stock":true},{"title":"8\" \/ 250lb\/in.","offer_id":56641902117030,"sku":"EIB0800.250.0250S","price":82.0,"currency_code":"USD","in_stock":true},{"title":"8\" \/ 300lb\/in.","offer_id":56641902182566,"sku":"EIB0800.250.0300S","price":82.0,"currency_code":"USD","in_stock":true},{"title":"8\" \/ 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350lb\/in.","offer_id":56641903722662,"sku":"EIB1400.250.0350S","price":90.0,"currency_code":"USD","in_stock":true},{"title":"14\" \/ 400lb\/in.","offer_id":56641903755430,"sku":"EIB1400.250.0400S","price":90.0,"currency_code":"USD","in_stock":true},{"title":"14\" \/ 500lb\/in.","offer_id":56641903820966,"sku":"EIB1400.250.0500S","price":90.0,"currency_code":"USD","in_stock":true},{"title":"16\" \/ 80lb\/in.","offer_id":56641903853734,"sku":"EIB1600.250.0080S","price":90.0,"currency_code":"USD","in_stock":true},{"title":"16\" \/ 100lb\/in.","offer_id":56641903886502,"sku":"EIB1600.250.0100S","price":90.0,"currency_code":"USD","in_stock":true},{"title":"16\" \/ 125lb\/in.","offer_id":56641903919270,"sku":"EIB1600.250.0125S","price":90.0,"currency_code":"USD","in_stock":true},{"title":"16\" \/ 150lb\/in.","offer_id":56641903952038,"sku":"EIB1600.250.0150S","price":90.0,"currency_code":"USD","in_stock":true},{"title":"16\" \/ 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