{"product_id":"rdr-chrome-silicon-steel-alloy-valve-springs-169-513","title":"RDR Chrome Silicon Steel Alloy Valve Springs","description":"\u003cp\u003eRDR's Chrome Silicon Steel Alloy Valve Springs for 139QMB 50cc 4-stroke  and 125\/150cc GY6 and GY6B 4-stroke engines are rated for 12,000 RPM. The lighter your valve train components, the quicker the engine revs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes 2 Inner and 2 Outer Valve Springs\u003c\/li\u003e\n\u003cli\u003eOuter Spring Weight: 14g\u003c\/li\u003e\n\u003cli\u003eInner Spring Weight: 7g\u003c\/li\u003e\n\u003cli\u003eCoil Diameter Outer Spring: 2.54mm\u003c\/li\u003e\n\u003cli\u003eCoil Diameter Inner Spring: 1.95mm\u003c\/li\u003e\n\u003cli\u003eOuter Spring Height: 37.3mm\u003c\/li\u003e\n\u003cli\u003eInner Spring Height: 27.3mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 139QMB 50cc 4-stroke  and 125\/150cc GY6 and GY6B 4-stroke engines\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e139QMB-based 50cc \/ 80cc engines with the following engine codes:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable width=\"463\" height=\"100\" style=\"width: 87.0908%;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e139QMA\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e139QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e1P39QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e1P39QMA-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eYN139QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eJJ1P39QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e139FMA-2\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eBD1P39QMB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eBN139QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e147QMD\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eOther QMA models\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eOther QMB models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003e157QMJ-based 125cc \/ 150cc \/ 169cc engines with the following engine codes:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable width=\"463\" height=\"100\" style=\"width: 87.0908%; height: 92.3437px;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"height: 26.5781px;\"\u003e\n\u003ctd style=\"width: 24.7892%; height: 26.5781px;\"\u003e157QMJ\u003c\/td\u003e\n\u003ctd style=\"width: 24.7892%; height: 26.5781px;\"\u003e161QMK\u003c\/td\u003e\n\u003ctd style=\"width: 24.7892%; height: 26.5781px;\"\u003e152QMI\u003c\/td\u003e\n\u003ctd style=\"width: 24.7892%; height: 26.5781px;\"\u003e1P61QMK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.5781px;\"\u003e\n\u003ctd style=\"width: 24.7892%; height: 26.5781px;\"\u003eYN1P57QMJ\u003c\/td\u003e\n\u003ctd style=\"width: 24.7892%; height: 26.5781px;\"\u003e1P52FMI\u003c\/td\u003e\n\u003ctd style=\"width: 24.7892%; height: 26.5781px;\"\u003e154FMI\u003c\/td\u003e\n\u003ctd style=\"width: 24.7892%; height: 26.5781px;\"\u003eJJ157QMJ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 24.7892%; height: 39.1875px;\"\u003e1P57QMJ\u003c\/td\u003e\n\u003ctd style=\"width: 24.7892%; height: 39.1875px;\"\u003eBN157QMJ\u003c\/td\u003e\n\u003ctd style=\"width: 24.7892%; height: 39.1875px;\"\u003eBN161QMK-A\u003c\/td\u003e\n\u003ctd style=\"width: 24.7892%; height: 39.1875px;\"\u003eOther QMJ, QMK, and QMI models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eDon't see your engine listed? If the engine code includes \"QM\" or \"FM\" and your bike is a 4T, this product is compatible with your vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout RDR:\u003c\/strong\u003e RDR is a Taiwanese manufacturer who specializes in performance and styling parts for scooters and motorcycles.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch3 style=\"color:#983D3C;\"\u003eThis product is not intended for use on public roads or land.\u003c\/h3\u003e","brand":"RDR","offers":[{"title":"Default Title","offer_id":50254756184344,"sku":"169-513","price":28.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/files\/453009.jpg?v=1748983343","url":"https:\/\/www.scooterworks.com\/products\/rdr-chrome-silicon-steel-alloy-valve-springs-169-513","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}