{"product_id":"racing-valve-spring-kit-2","title":"Racing Valve Spring Kit","description":"\u003cp\u003eKPMI? 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:\u003c\/p\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003e80 Lbs of Seat Pressure \/ 205 Lbs @ 0.435\" Lift (Max)\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eSpring kit is designed for compatibility with the OEM integrated Seal\/Base (OE# 3610212) where applicable\u003c\/li\u003e\n\u003cbr\u003e\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\u003cbr\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFitment\n\u003cbr\u003eHonda CRF450R  2017\n\u003cbr\u003eHonda CRF450R  2018\n\u003cbr\u003eHonda CRF450R  2019\n\u003cbr\u003eHonda CRF450R  2020\n\u003cbr\u003eHonda CRF450R  2021\n\u003cbr\u003eHonda CRF450R W.E.  2019\n\u003cbr\u003eHonda CRF450R W.E.  2020\n\u003cbr\u003eHonda CRF450R W.E.  2021\n\u003cbr\u003eHonda CRF450RX  2017\n\u003cbr\u003eHonda CRF450RX  2018\n\u003cbr\u003eHonda CRF450RX  2019\n\u003cbr\u003eHonda CRF450RX  2020\n\u003cbr\u003eHonda CRF450RX  2021\u003c\/p\u003e","brand":"KPMI","offers":[{"title":"Default Title","offer_id":45405332177126,"sku":"191-21017","price":207.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0675\/5257\/5718\/files\/3813-5bdcc475a6cc5.jpg?v=1728343652","url":"https:\/\/osburns.com\/products\/racing-valve-spring-kit-2","provider":"Osburn's Family Business","version":"1.0","type":"link"}