{"product_id":"b-bc0900d-2-b-polaris-pro-r-21-up-dual-spring-steel-retainer-seat-kit","title":"Brian Crower Polaris Pro-R (21-up) Dual Spring\/Steel Retainer\/Seat Kit BC0900D-2","description":"\u003cp\u003e\u003cspan\u003eDual spring d\u003c\/span\u003e\u003cspan\u003eesigned for high rpm and\/or anti-lag, works with stock buckets (sizing based on the installed height of your valves). BC \u003c\/span\u003evalve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers are machined from premium chromoly steel alloy for \"set it and forget it\" wear characteristics.\u003c\/p\u003e\n\u003cp\u003eNOTE: \u003cspan\u003eThis kit requires the BC3992 valve seals, in order to run the BC3992 valve seals you must change the OEM valve guides to BC3966 ( THE DUAL SPRING KIT CANNOT USE THE OEM SEAT\/SEAL AND MUST USE THE SEAT THAT COMES WITH THE KIT)\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable style=\"background-color: 1px solid #cccccc; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"#FFFFFF\"\u003e\n\u003ctd align=\"right\"\u003eType\u003c\/td\u003e\n\u003ctd\u003eBC1902 Single\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"#FFFFFF\"\u003e\n\u003ctd align=\"right\"\u003eFree Length\u003c\/td\u003e\n\u003ctd\u003e1.610\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"#FFFFFF\"\u003e\n\u003ctd align=\"right\"\u003eSeat\u003c\/td\u003e\n\u003ctd\u003e1.265\" @ 90 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"#FFFFFF\"\u003e\n\u003ctd align=\"right\"\u003eOpen\u003c\/td\u003e\n\u003ctd\u003e0.850\" @ 233 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"#FFFFFF\"\u003e\n\u003ctd align=\"right\"\u003eCoil Bind\u003c\/td\u003e\n\u003ctd\u003e0.770\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"#FFFFFF\"\u003e\n\u003ctd align=\"right\"\u003eRetainer\u003c\/td\u003e\n\u003ctd\u003eBC2902\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"#FFFFFF\"\u003e\n\u003ctd align=\"right\"\u003eSpring Seat\u003c\/td\u003e\n\u003ctd\u003eBC2912\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"#FFFFFF\"\u003e\n\u003ctd align=\"right\"\u003eNet Cam Lift\u003c\/td\u003e\n\u003ctd\u003e0.450\" \/ 11.43mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Brian Crower Inc","offers":[{"title":"Default Title","offer_id":48881158717592,"sku":"9ITYX","price":750.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0564\/0867\/0360\/files\/image_dc123074-2a61-433e-b071-adb4c9bb6331.png?v=1776391791","url":"https:\/\/frsport.com\/products\/b-bc0900d-2-b-polaris-pro-r-21-up-dual-spring-steel-retainer-seat-kit","provider":"FR SPORT","version":"1.0","type":"link"}