{"product_id":"eibach-er-platinum-rear-motorsport-spring-pr1800-500-0050-18-inch-length-5-0-inch-outside-diameter-50-lb-in-rate","title":"Eibach ER Platinum Rear Motorsport Spring PR1800.500.0050, 18-Inch Length, 5.0-Inch Outside Diameter, 50 lb\/in Rate","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 ER Platinum Rear Motorsport Spring is engineered for racers who require consistent suspension performance and precise tuning across demanding track conditions. Part number PR1800.500.0050 features an 18-inch spring length, a 5.0-inch outside diameter, and a 50 lb\/in spring rate for predictable handling characteristics and repeatable suspension response. As part of Eibach’s extensive race spring range, this individual spring supports suspension optimization for a wide variety of motorsport applications.\u003c\/p\u003e\n\u003cp\u003eBuilt from high-tensile steel, the Eibach ER Platinum Spring combines lightweight construction with excellent durability. Its flat-ground end configuration is designed with parallel tolerance within +\/-1 degree, helping promote accurate installation and consistent load distribution. The spring also provides greater travel and deflection than standard racing coil springs, allowing suspension systems to better manage changing track surfaces and dynamic load conditions.\u003c\/p\u003e\n\u003cp\u003eThe ER Platinum design is engineered to maintain its dimensions and spring rate within exceptionally tight tolerances lap after lap and race after race. Its block-resistant construction helps prevent loss of spring height under repeated compression, supporting dependable ride-height control and consistent vehicle behavior. This rear spring is intended for custom motorsport suspension setups where spring rate selection, travel, and long-term consistency are essential. Verify spring dimensions, rate, and application requirements before installation.\u003c\/p\u003e\n\u003ch3\u003eKey Product Specifications \u0026amp; Technical Data\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: Eibach\u003c\/li\u003e\n  \u003cli\u003eSeries: ER Platinum Motorsport Spring\u003c\/li\u003e\n  \u003cli\u003ePart Number: PR1800.500.0050\u003c\/li\u003e\n  \u003cli\u003ePosition: Rear\u003c\/li\u003e\n  \u003cli\u003eSpring Length: 18 inches\u003c\/li\u003e\n  \u003cli\u003eOutside Diameter: 5.0 inches\u003c\/li\u003e\n  \u003cli\u003eSpring Rate: 50 lb\/in\u003c\/li\u003e\n  \u003cli\u003eConstruction: High-tensile steel race spring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOne Eibach ER Platinum rear motorsport spring\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConsistent Racing Performance: Maintains spring dimensions and rate within tight tolerances for repeatable handling from lap to lap.\u003c\/li\u003e\n\u003cli\u003eFlat-Ground End Configuration: Provides parallel tolerance within +\/-1 degree for accurate fitment and consistent load distribution.\u003c\/li\u003e\n\u003cli\u003eIncreased Suspension Travel: Offers more travel and deflection than standard racing coil springs to help manage dynamic track loads.\u003c\/li\u003e\n\u003cli\u003eLightweight, Block-Resistant Construction: Uses high-tensile steel and resists loss of spring height under repeated compression.\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\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\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: false\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":51395839033596,"sku":"PR1800.500.0050","price":180.03,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/3441b35a0126edcbb23632bb3bf4319dL_1d0d2c12-96da-4a4b-97ae-32848ba3c7e6.jpg?v=1790358357","url":"https:\/\/diycustoms.store\/products\/eibach-er-platinum-rear-motorsport-spring-pr1800-500-0050-18-inch-length-5-0-inch-outside-diameter-50-lb-in-rate","provider":"diycustoms.store","version":"1.0","type":"link"}