{"product_id":"swift-springs-standard-coilover-spring-bulletproof-id-2-55in-18in-length","title":"Swift Springs Standard Coilover Spring (Bulletproof) - ID: 2.55\" \/ Length: 18\"","description":"\u003cp\u003eSwift Springs Bulletproof Series Coilover Springs in 2.55\" ID and 18\" length are engineered for the extreme demands of competitive circle track and oval racing where springs face repeated high-stress loading cycles. These 2.55\" ID Swift Bulletproof springs are manufactured in Japan from proprietary H5S.TW high-tensile alloy steel, providing the enhanced durability and rate consistency that circle track racers require for long race distances and multi-day events.\u003c\/p\u003e\n\u003cp\u003eThe 18\" free length provides maximum usable stroke for long-travel suspension setups common in circle track applications. Swift Springs developed the Bulletproof Series after years of research with top racers, specifically engineering these springs to survive loading conditions that would cause conventional springs to sag or lose rate consistency.\u003c\/p\u003e\n\u003ch3\u003eWhy Racers Choose Swift Springs Bulletproof Series\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePurpose-built for high-stress circle track and oval racing applications\u003c\/li\u003e\n\u003cli\u003eProprietary H5S.TW alloy delivers extreme fatigue resistance and rate consistency\u003c\/li\u003e\n\u003cli\u003e18\" free length for maximum usable stroke in long-travel setups\u003c\/li\u003e\n\u003cli\u003eEngineered to survive repeated high-load cycles without rate degradation\u003c\/li\u003e\n\u003cli\u003eFewer coils reduce unsprung weight\u003c\/li\u003e\n\u003cli\u003eDeveloped from years of research with top circle track racers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Swift Coilover Springs are sold individually. Select your desired spring rate from the options above.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable class=\"table table-striped table-primary\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"spchd\"\u003e\n\u003ctd rowspan=\"2\" width=\"25%\"\u003e\u003cstrong\u003ePART #\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSPRING RATE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUSABLE STROKE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMAX STROKE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMAX LOAD\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spchd\"\u003e\n\u003ctd\u003elbs\/inch\u003c\/td\u003e\n\u003ctd\u003einch\u003c\/td\u003e\n\u003ctd\u003einch\u003c\/td\u003e\n\u003ctd\u003elbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spcrow\"\u003e\n\u003ctd class=\"spc\"\u003e180-2550-050 BP\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e50\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e12.4\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e13.4\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e670\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spcrow\"\u003e\n\u003ctd class=\"spc\"\u003e180-2550-080 BP\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e80\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e13\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e14.1\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e1,133\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spcrow\"\u003e\n\u003ctd class=\"spc\"\u003e180-2550-100 BP\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e100\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e12.8\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e13.7\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e1,369\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spcrow\"\u003e\n\u003ctd class=\"spc\"\u003e180-2550-125 BP\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e125\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e13.4\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e13.4\u003c\/td\u003e\n\u003ctd class=\"spc\"\u003e1,680\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Swift Springs","offers":[{"title":"50","offer_id":44167806124092,"sku":"180-2550-050 BP","price":136.85,"currency_code":"USD","in_stock":true},{"title":"80","offer_id":44167806156860,"sku":"180-2550-080 BP","price":136.85,"currency_code":"USD","in_stock":true},{"title":"100","offer_id":44167806189628,"sku":"180-2550-100 BP","price":136.85,"currency_code":"USD","in_stock":true},{"title":"125","offer_id":44167806222396,"sku":"180-2550-125 BP","price":136.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0000\/2183\/files\/180-2550-050BP.jpg?v=1775244299","url":"https:\/\/www.springrates.com\/products\/swift-springs-standard-coilover-spring-bulletproof-id-2-55in-18in-length","provider":"SPRINGRATES®","version":"1.0","type":"link"}