{"product_id":"eibach-ers-platinum-18-inch-rear-racing-spring-3-50-inch-outside-diameter-115-lb-in-part-number-p1800-350-0115","title":"Eibach ERS Platinum 18-Inch Rear Racing Spring, 3.50-Inch Outside Diameter, 115 lb\/in, Part Number P1800.350.0115","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 Series rear racing spring is engineered for competitive motorsports applications that demand consistent performance, low weight, and reliable spring behavior under repeated high-load conditions. Constructed from Eibach’s proprietary ultra-high tensile strength steel, this coil spring is designed to provide increased travel and deflection compared with standard racing coil springs while supporting precise suspension tuning.\u003c\/p\u003e\n\u003cp\u003eDesigned for race use, the Eibach ERS Platinum spring maintains its dimensions and spring rate within exceptionally tight tolerances lap after lap and race after race. Its flat-ground end configuration and precise parallel alignment promote consistent seating and predictable suspension response. The spring’s 115 lb\/in rate provides a firm, competition-focused setup for applications requiring controlled chassis movement and repeatable handling characteristics.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature:\u003c\/strong\u003e Ultra-high tensile steel construction reduces weight while supporting high-load racing performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature:\u003c\/strong\u003e Increased travel and deflection compared with standard racing coil springs help maximize suspension movement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature:\u003c\/strong\u003e Tight dimensional and rate tolerances help maintain consistent performance throughout repeated race use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature:\u003c\/strong\u003e Block-resistant design helps prevent loss of spring height during demanding operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications and Technical Data:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Eibach\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e ERS Platinum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e P1800.350.0115\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Automotive racing suspension\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpring Position:\u003c\/strong\u003e Rear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpring Rate:\u003c\/strong\u003e 115 lb\/in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 3.50 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Configuration:\u003c\/strong\u003e Flat-ground ends with precision parallel alignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat’s Included:\u003c\/strong\u003e One Eibach ERS Platinum rear racing spring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Vehicle-specific fitment information was not provided. Verify spring diameter, free length, spring rate, suspension position, and coilover compatibility before installation. This product is intended for automotive racing applications and may require supporting suspension components or professional setup.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUltra-high tensile steel construction delivers low weight with strong resistance to demanding racing loads.\u003c\/li\u003e\n\u003cli\u003eProvides more travel and deflection than standard racing coil springs for increased suspension movement.\u003c\/li\u003e\n\u003cli\u003eMaintains spring dimensions and rate within tight tolerances for consistent lap-after-lap performance.\u003c\/li\u003e\n\u003cli\u003eBlock-resistant design helps preserve spring height during repeated high-load use.\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":67580129902844,"sku":"P1800.350.0115","price":180.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/5917fd7feda71902acb4990da97802e8L_3668b3fc-183c-495f-9ec4-8f2ffc25cf1a.jpg?v=1790396155","url":"https:\/\/diycustoms.store\/products\/eibach-ers-platinum-18-inch-rear-racing-spring-3-50-inch-outside-diameter-115-lb-in-part-number-p1800-350-0115","provider":"diycustoms.store","version":"1.0","type":"link"}