{"product_id":"kit-in-valve-spring-rm-z250-prox-28-sis4335-2-intake-kxf","title":"KIT IN VALVE+SPRING RM-Z250, PROX 28.SIS4335-2 INTAKE KXF","description":"\u003cp\u003eProx Steel INTAKE Valve\/Spring Kit \u003cbr\u003e Prox is offering a wide range of titanium into steel conversion kits. The ProX titanium into steel extends 3\u003c\/p\u003e \u003cp\u003etimes the lifespan up the OEM titanium valves. The kits contain a set of steel intake or exhaust valves plus a set of special designed stronger valve springs. due to the extra weight of the steel valve a heavier valve spring must be used! The ProX kit just replaces the OEM valves \u0026amp; valve springs and can be installed using the OEM retainers, bases and valve seats.\u003c\/p\u003e \u003cp\u003eKawasaki KX250F  (2004-2006), Suzuki   RM-Z250 (2004-2006),\u003c\/p\u003e \u003cp\u003ePROX 28.SIS4335-2\u003c\/p\u003e","brand":"ORO2U","offers":[{"title":"Default Title","offer_id":57206187426165,"sku":"65-K178.PX","price":171.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5011\/6136\/files\/stock63624_1.jpg?v=1779150536","url":"https:\/\/www.smxoffroad.com\/es\/products\/kit-in-valve-spring-rm-z250-prox-28-sis4335-2-intake-kxf","provider":"SMXOFFROAD Ltd","version":"1.0","type":"link"}