{"product_id":"valve-spring-set-yzf250-01-12-kibblewhite-80-80069-racing-wrf250-01-12-yamaha","title":"VALVE SPRING SET YZF250 01-12, KIBBLEWHITE 80-80069 RACING, WRF250 01-12 YAMAHA","description":"\u003cp\u003e\u003cspan style=\"text-decoration:\" underline\u003e\u003cstrong\u003eYAMAHA \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003eYZF\/WRF 250 2001-2012,\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size:\" medium\u003e\u003cstrong\u003eLightweight Racing Valve Chrome Silicon Springs\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:\" medium\u003e\u003cstrong\u003e. \u003cbr\u003eKibblewhite # 80-80069. \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003eHIGH LIFT 0.380 INC. \u003cbr\u003eKPMI takes a scientific -System- approach when designing our Valve spring kits. Each component is designed to work with the others as part of the complete system. KPMI?s engineers use our proprietary design and simulation softwares, and draw on our 70+ years of design experience to create these systems. Our design, simulation, and manufacturing processes insure compatibility of the valve spring?s force and natural frequency with the cam profile, valvetrain mass, system harmonics 65-722 46# Seat Pressure \/ 155 lb. at .450 lift\u003cbr\u003e Exhaust - 0.450 Valve Lift OK 46# Seat Pressure \/ 155 lb. at .450 lift\u003cbr\u003e KPMI takes a scientific -System- approach when designing our Valve spring kits. Each component is designed to work with the others as part of the complete system. KPMI?s engineers use our proprietary design and simulation softwares, and\u003c\/p\u003e \u003cp\u003ePart No. 65-721.SP  (Off Road Only Ltd.)\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e","brand":"ORO2U","offers":[{"title":"Default Title","offer_id":57196991283573,"sku":"65-721.SP","price":172.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5011\/6136\/files\/stock63477_1.jpg?v=1779064348","url":"https:\/\/www.smxoffroad.com\/es\/products\/valve-spring-set-yzf250-01-12-kibblewhite-80-80069-racing-wrf250-01-12-yamaha","provider":"SMXOFFROAD Ltd","version":"1.0","type":"link"}