{"product_id":"ast-linear-race-springs-150mm-length-x-90-n-mm-rate-x-61mm-id-single","title":"AST Linear Race Springs - 150mm Length x 90 N\/mm Rate x 61mm ID - Single","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eAST-150-90-61\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e astAST-150-90-61\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eAST Linear Race Springs - 150mm Length x 90 N\/mm Rate x 61mm ID - Single\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAST Linear Race Springs deliver precise consistent spring force in a single unit measuring 150mm free length 90 N\/mm linear rate and 61mm inner diameter. Crafted for coilover systems on race track and performance vehicles these springs ensure reliable suspension response under high loads. MPN AST-150-90-61 fits standard 61mm ID perches in custom and aftermarket coilover builds.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e90 N\/mm Linear Rate:\u003c\/strong\u003e Provides steady force progression for sharp responsive handling and control through corners\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e150mm Free Length:\u003c\/strong\u003e Matches high travel coilover designs allowing full suspension droop and bump without binding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e61mm Inner Diameter:\u003c\/strong\u003e Compatible with common 2.4-inch coilover perches for direct bolt-on integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome Silicon Steel Construction:\u003c\/strong\u003e Heat treated and shot peened for fatigue resistance enduring thousands of race cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowder Coated Finish:\u003c\/strong\u003e Resists corrosion from track elements and repeated washdowns maintaining performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSold as single spring order two for paired applications\u003c\/li\u003e\n\u003cli\u003eInspect coilover perch diameter prior to install for 61mm ID match\u003c\/li\u003e\n\u003cli\u003eSpecial order processing may apply verify stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eCompress spring safely using dedicated coil spring compressor tool\u003c\/li\u003e\n\u003cli\u003eCompatible with AST coilovers and 61mm ID perches requires no special hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003eUniversal Coilover Systems\u003c\/td\u003e\n\u003ctd\u003eRace Track Performance Builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose AST?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProven in European rally and circuit racing worldwide\u003c\/li\u003e\n\u003cli\u003eDyno-tested rates ensure exact performance match\u003c\/li\u003e\n\u003cli\u003eHand-inspected for roundness and load consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does this spring fit my coilover setup?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Fits any coilover with 61mm ID perch and matching height requirements ideal for race rebuilds verify your perch size\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is used?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Premium chrome silicon vanadium steel heat treated shot peened and preset for maximum durability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Covered under AST manufacturing defect warranty contact support for claims\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Protective cardboard tube 7in x 7in x 18in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.4 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AST","offers":[{"title":"Default Title","offer_id":42056973090895,"sku":"ASTAST-150-90-61","price":85.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/ast-linear-race-springs-150mm-length-x-90-nmm-rate-x-61mm-id-single-ast.jpg?v=1771569855","url":"https:\/\/www.blackopsautoworks.com\/products\/ast-linear-race-springs-150mm-length-x-90-n-mm-rate-x-61mm-id-single","provider":"Black Ops Auto Works","version":"1.0","type":"link"}