{"product_id":"racing-valve-spring-kit-1","title":"Racing Valve Spring Kit","description":"KPMI® valve springs are wound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI® valve springs are heat-treated, stress relieved, and shot peened to insure maximum performance and life. Springs are engineered for each specific application using proprietary advanced spring design simulation, and analysis software. Engineers pay special attention to cam and spring harmonics, stress, mass, and operating rpm.\u003cbr\u003eFeatures:\u003cul\u003e\n\u003cli\u003e80 Lbs of Seat Pressure \/ 205 Lbs @ 0.435\" Lift (Max)\u003c\/li\u003e\n\u003cli\u003eSpring kit is designed for compatibility with the OEM integrated Seal\/Base (OE# 3610212) where applicable\u003c\/li\u003e\n\u003cli\u003eLightweight heat treated Steel Retainer and Beehive Spring reduce reciprocating mass while providing the spring forces required by high performance boosted racing applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2001 Yamaha WR250F\u003cbr\u003e\n2001 Yamaha YZ250F\u003cbr\u003e\n2002 Yamaha WR250F\u003cbr\u003e\n2002 Yamaha YZ250F\u003cbr\u003e\n2003 Yamaha WR250F\u003cbr\u003e\n2003 Yamaha YZ250F\u003cbr\u003e\n2004 Yamaha WR250F\u003cbr\u003e\n2004 Yamaha YZ250F\u003cbr\u003e\n2005 Yamaha WR250F\u003cbr\u003e\n2005 Yamaha YZ250F\u003cbr\u003e\n2006 Yamaha WR250F\u003cbr\u003e\n2006 Yamaha YZ250F\u003cbr\u003e\n2007 Yamaha WR250F\u003cbr\u003e\n2007 Yamaha YZ250F\u003cbr\u003e\n2008 Yamaha WR250F\u003cbr\u003e\n2008 Yamaha YZ250F\u003cbr\u003e\n2009 Yamaha WR250F\u003cbr\u003e\n2009 Yamaha YZ250F\u003cbr\u003e\n2010 Yamaha WR250F\u003cbr\u003e\n2010 Yamaha YZ250F\u003cbr\u003e\n2011 Yamaha WR250F\u003cbr\u003e\n2011 Yamaha YZ250F\u003cbr\u003e\n2012 Yamaha WR250F\u003cbr\u003e\n2012 Yamaha YZ250F\u003cbr\u003e\n2013 Yamaha WR250F\u003cbr\u003e\n2013 Yamaha YZ250F","brand":"KPMI","offers":[{"title":"Default Title","offer_id":55937875542184,"sku":"80-80066","price":544.95,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/8273\/6552\/files\/81b7-572a591b19bf4_9b7494b2-3b64-41be-a417-ea6a30801fe4.jpg?v=1788243688","url":"https:\/\/speedguyscanada.com\/products\/racing-valve-spring-kit-1","provider":"THE SPEED GUYS CANADA ","version":"1.0","type":"link"}