{"product_id":"eibach-ers-platinum-18-in-rear-racing-spring-3-50-in-outside-diameter-850-lb-in-rate-p1800-350-0085","title":"Eibach ERS Platinum 18 in. Rear Racing Spring, 3.50 in. Outside Diameter, 850 lb\/in. Rate – P1800.350.0085","description":"Eibach PLATINUM series race springs are engineered using our proprietary ultra-high tensile strength steel, for the lowest physical weights and maximum spring travel.\nMore Travel \/ Deflection than Standard Racing Coil Springs\n\u003cul\u003e\n  \u003cli\u003eThe Eibach ER Platinum Springs will Maintain Their Dimensions and Rates to Incredibly Tight Tolerances, Lap after Lap, Race after Race\u003c\/li\u003e\n  \u003cli\u003eFlat-Ground End Configuration with Parallel Tolerance to +\/-1 Degree\u003c\/li\u003e\n  \u003cli\u003eUltra Light-Weight Using High Tensile Steel\u003c\/li\u003e\n  \u003cli\u003eBlock Resistant - No Loss in Spring Height!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Eibach ERS Platinum rear racing spring is engineered for demanding motorsports applications where consistent performance, reduced weight, and predictable suspension behavior are essential. Part number P1800.350.0085 features Eibach’s proprietary ultra-high-tensile-strength steel, providing increased spring travel and deflection compared with standard racing coil springs.\u003c\/p\u003e\n\n\u003cp\u003eDesigned to maintain its dimensions and spring rate within extremely tight tolerances, this Eibach Platinum spring delivers dependable performance lap after lap and race after race. The flat-ground end configuration uses parallel tolerances of plus or minus 1 degree for precise seating and consistent load distribution. Its block-resistant construction helps prevent loss of spring height, supporting reliable suspension setup and ride-height control throughout extended competition use.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFeature: Ultra-high-tensile-strength steel reduces physical weight while supporting increased spring travel.\u003c\/li\u003e\n  \u003cli\u003eFeature: Tight dimensional and rate tolerances help maintain consistent performance during repeated racing cycles.\u003c\/li\u003e\n  \u003cli\u003eFeature: Flat-ground ends with parallel tolerances of plus or minus 1 degree promote precise spring seating.\u003c\/li\u003e\n  \u003cli\u003eFeature: Block-resistant construction helps prevent spring-height loss under demanding loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eProduct Specifications and Technical Data\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: Eibach\u003c\/li\u003e\n  \u003cli\u003eSeries: ERS Platinum\u003c\/li\u003e\n  \u003cli\u003ePart Number: P1800.350.0085\u003c\/li\u003e\n  \u003cli\u003eApplication: Rear racing coil spring\u003c\/li\u003e\n  \u003cli\u003eSpring Rate: 850 pounds per inch\u003c\/li\u003e\n  \u003cli\u003eOutside Diameter: 3.50 inches\u003c\/li\u003e\n  \u003cli\u003eFree Length: 18 inches\u003c\/li\u003e\n  \u003cli\u003eConstruction: Ultra-high-tensile-strength steel with flat-ground ends\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne Eibach ERS Platinum rear racing spring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFitment should be verified against the vehicle’s suspension design, spring dimensions, required rate, and racing setup before installation. This product is intended for automotive motorsports use. California Proposition 65 warnings may apply.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUltra-high-tensile-strength steel construction provides reduced weight and increased spring travel.\u003c\/li\u003e\n\u003cli\u003eTight dimensional and spring-rate tolerances help deliver consistent performance lap after lap.\u003c\/li\u003e\n\u003cli\u003eFlat-ground end configuration with parallel tolerances of plus or minus 1 degree supports precise seating.\u003c\/li\u003e\n\u003cli\u003eBlock-resistant design helps prevent loss of spring height under demanding racing loads.\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\u003eCarb Acknowledgement Required: 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\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":67580126003452,"sku":"P1800.350.0085","price":180.03,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/5917fd7feda71902acb4990da97802e8L.jpg?v=1790395903","url":"https:\/\/diycustoms.store\/products\/eibach-ers-platinum-18-in-rear-racing-spring-3-50-in-outside-diameter-850-lb-in-rate-p1800-350-0085","provider":"diycustoms.store","version":"1.0","type":"link"}