{"product_id":"eibach-ers-platinum-18-inch-rear-race-spring-5-00-inch-outside-diameter-112-lb-in-pr1800-500-0112","title":"Eibach ERS Platinum 18-Inch Rear Race Spring, 5.00-Inch Outside Diameter, 112 lb\/in - PR1800.500.0112","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\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\u003eMore Travel \/ Deflection than Standard Racing Coil Springs\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 PR1800.500.0112 is an individual motorsport spring engineered for racers who need consistent suspension performance and precise tuning control. Designed for rear race applications, this spring delivers a 112 lb\/in rate and is built to maintain its dimensions and spring rate within exceptionally tight tolerances through repeated heat cycles, hard cornering, and demanding track use.\u003c\/p\u003e\u003cp\u003eIts flat-ground ends provide a parallel tolerance of plus or minus 1 degree, supporting reliable spring seating and predictable suspension behavior. The ERS Platinum construction also allows more travel and deflection than standard racing coil springs, helping teams optimize grip and handling across changing track conditions. High-tensile steel keeps weight low without compromising durability, while the block-resistant design helps prevent loss of spring height over time.\u003c\/p\u003e\u003cp\u003eUse the Eibach ERS Platinum spring as part of a properly matched race suspension system. Its motorsport-focused design is suitable for competition vehicles and applications where repeatable rates, stable ride height, and accurate suspension tuning are essential. Confirm compatibility with the vehicle, damper, spring perch, and suspension setup before installation. This product is sold as one individual spring.\u003c\/p\u003e\u003ch3\u003eProduct Specifications and Technical Data\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Eibach\u003c\/li\u003e\n\u003cli\u003eSeries: ERS Platinum\u003c\/li\u003e\n\u003cli\u003ePart Number: PR1800.500.0112\u003c\/li\u003e\n\u003cli\u003eApplication: Motorsport rear race spring\u003c\/li\u003e\n\u003cli\u003eSpring Rate: 112 lb\/in\u003c\/li\u003e\n\u003cli\u003eOutside Diameter: 5.00 inches\u003c\/li\u003e\n\u003cli\u003eFree Length: 18 inches\u003c\/li\u003e\n\u003cli\u003eConstruction: High-tensile steel with block-resistant design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOne Eibach ERS Platinum individual motorsport spring\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Vehicle-specific fitment data was not provided. Verify spring dimensions, rate, installed height, spring perch compatibility, and suspension requirements for the intended race vehicle before ordering.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConsistent Race Performance: Maintains spring dimensions and rates within tight tolerances for reliable handling lap after lap.\u003c\/li\u003e\n\u003cli\u003eFlat-Ground Ends: Provides a parallel tolerance of plus or minus 1 degree for accurate seating and predictable suspension response.\u003c\/li\u003e\n\u003cli\u003eExtended Travel Capability: Allows more travel and deflection than standard racing coil springs for greater suspension tuning flexibility.\u003c\/li\u003e\n\u003cli\u003eLightweight, Durable Construction: Uses high-tensile steel and a block-resistant design to reduce weight and help prevent loss of spring height.\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":67580150022396,"sku":"PR1800.500.0112","price":180.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/3441b35a0126edcbb23632bb3bf4319dL_c756484c-7cb6-47d6-b482-d70b370a8ed8.jpg?v=1790396856","url":"https:\/\/diycustoms.store\/products\/eibach-ers-platinum-18-inch-rear-race-spring-5-00-inch-outside-diameter-112-lb-in-pr1800-500-0112","provider":"diycustoms.store","version":"1.0","type":"link"}