{"product_id":"valve-spring-set-crf250r-08-09-kibblewhite-30-31150-racing-lightweight-kit","title":"VALVE SPRING SET CRF250R 08-09, KIBBLEWHITE 30-31150 RACING, LIGHTWEIGHT KIT","description":"\u003cp\u003e Part No. 65-712  (Off Road Only Ltd.) Spring Kit, 350 Valve Lift OK,\u003cbr\u003e Honda 008-09 CRF250R, Lightweight Racing Valve Chrome Silicon Springs, Titanium Retainers, H.T. Steel lower Collars. Kit, seals.\u003cbr\u003e Kibblewhite # 30-31150\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e INTAKE  , 0.350 Valve Lift OK 50# Seat Pressure 145lb. @ .350 lift\u003cbr\u003e EXHAUST , 0.350 Valve Lift OK 50# Seat Pressure 145lb. @ .350 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\u003c\/p\u003e\u003cp\u003e 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, and the engine RPM. Our spring manufacturing partners are U.S based companies that are ISO certified. The Super-Clean Chrome Silicon valve spring wire we use is traceable back to Ko  65-714\u003cbr\u003e Kibblewhite # 30-31450\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"ORO2U","offers":[{"title":"Default Title","offer_id":57196983648629,"sku":"65-712","price":243.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5011\/6136\/files\/stock63467_1.jpg?v=1779064338","url":"https:\/\/www.smxoffroad.com\/products\/valve-spring-set-crf250r-08-09-kibblewhite-30-31150-racing-lightweight-kit","provider":"SMXOFFROAD Ltd","version":"1.0","type":"link"}