{"product_id":"kpmi-racing-valve-spring-kit-30-31050","title":"KPMI Racing Valve Spring Kit 30-31050","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.\n\u003cp\u003eKPMI racing valve springs are wound from premium Kobe Super-Clean chrome silicon wire for performance and durability. Each spring is heat-treated, stress-relieved, and shot peened to support maximum performance and service life.\u003c\/p\u003e\u003cp\u003eThe springs are engineered for specific applications using advanced spring design simulation and analysis software. KPMI engineers evaluate cam and spring harmonics, stress, mass, and operating RPM to develop application-focused spring performance.\u003c\/p\u003e\u003cp\u003eThis valve spring kit includes a lightweight, heat-treated steel retainer and beehive spring design intended to reduce reciprocating mass while providing the spring forces required by high-performance boosted racing applications. The kit is designed for compatibility with the OEM integrated seal\/base, OE# 3610212, where applicable. KPMI part number 30-31050 fits select 2005–2009 and 2012–2016 Honda CRF450X models.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSeat Pressure: 80 pounds\u003c\/li\u003e\n\u003cli\u003eMaximum Pressure: 205 pounds at 0.435-inch lift\u003c\/li\u003e\n\u003cli\u003ePremium Kobe Super-Clean chrome silicon wire construction\u003c\/li\u003e\n\u003cli\u003eHeat-treated, stress-relieved, and shot-peened valve springs\u003c\/li\u003e\n\u003cli\u003eLightweight heat-treated steel retainer and beehive spring design\u003c\/li\u003e\n\u003cli\u003eDesigned for compatibility with the OEM integrated seal\/base, OE# 3610212, where applicable\u003c\/li\u003e\n\u003cli\u003eFits select 2005–2009 and 2012–2016 Honda CRF450X models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nHonda CRF450X  2005\u003cbr\u003e\nHonda CRF450X  2006\u003cbr\u003e\nHonda CRF450X  2007\u003cbr\u003e\nHonda CRF450X  2008\u003cbr\u003e\nHonda CRF450X  2009\u003cbr\u003e\nHonda CRF450X  2010\u003cbr\u003e\nHonda CRF450X  2011\u003cbr\u003e\nHonda CRF450X  2012\u003cbr\u003e\nHonda CRF450X  2013\u003cbr\u003e\nHonda CRF450X  2014\u003cbr\u003e\nHonda CRF450X  2015\u003cbr\u003e\nHonda CRF450X  2016\u003cbr\u003e\nHonda CRF450X  2017","brand":"KPMI","offers":[{"title":"Default Title","offer_id":44644137664599,"sku":"191-21007","price":228.0,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/valleyspeed.net\/en-gb\/products\/kpmi-racing-valve-spring-kit-30-31050","provider":"The Speed Shop Canada","version":"1.0","type":"link"}