{"product_id":"kpmi-racing-valve-spring-kit-30-30720","title":"KPMI Racing Valve Spring Kit 30-30720","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\u003eThe KPMI Racing Valve Spring Kit is engineered for high-performance applications, including 2004 and 2005 Honda TRX450R models. Each spring is wound from Premium Kobe Super-Clean Chrome Silicon Wire and engineered using advanced spring design simulation and analysis software.\u003c\/p\u003e\u003cp\u003eKPMI valve springs are heat-treated, stress-relieved, and shot-peened to support performance and service life. Engineering considerations include cam and spring harmonics, stress, mass, and operating RPM. The kit is designed for compatibility with the OEM integrated seal\/base, OE# 3610212, where applicable.\u003c\/p\u003e\u003cp\u003eThe lightweight, heat-treated steel retainer and beehive spring help reduce reciprocating mass while providing the spring forces required by high-performance boosted racing applications. The KPMI Racing Valve Spring Kit is identified by SKU 191-21012 and part number 30-30720.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSeat Pressure: 80 lb\u003c\/li\u003e\n\u003cli\u003eMaximum Pressure: 205 lb at 0.435 in. lift\u003c\/li\u003e\n\u003cli\u003ePremium Material: Wound from Premium Kobe Super-Clean Chrome Silicon Wire\u003c\/li\u003e\n\u003cli\u003eEngineered Design: Developed using advanced spring design simulation and analysis software\u003c\/li\u003e\n\u003cli\u003eDurability Treatment: Heat-treated, stress-relieved, and shot-peened\u003c\/li\u003e\n\u003cli\u003eOEM Compatibility: Designed for compatibility with the OEM integrated seal\/base, OE# 3610212, where applicable\u003c\/li\u003e\n\u003cli\u003eLightweight Components: Includes a heat-treated steel retainer and beehive spring designed to reduce reciprocating mass\u003c\/li\u003e\n\u003cli\u003eFitment: 2004 Honda TRX450R and 2005 Honda TRX450R\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nHonda TRX450R  2004\u003cbr\u003e\nHonda TRX450R  2005","brand":"KPMI","offers":[{"title":"Default Title","offer_id":44644068917335,"sku":"191-21012","price":227.0,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/valleyspeed.net\/en-gb\/products\/kpmi-racing-valve-spring-kit-30-30720","provider":"The Speed Shop Canada","version":"1.0","type":"link"}