{"product_id":"valvula-de-escape-regulable-neumatica-para-cilindro-rotax-122-d-54mm-italkit","title":"Adjustable pneumatic exhaust valve cylinder d=54mm rotax 122 Italkit","description":"\u003cp\u003e\u003cstrong\u003eAdjustable pneumatic exhaust valve\u003c\/strong\u003e for d.54mm cylinders or oversized cylinders for \u003cstrong\u003eRotax 122\u003c\/strong\u003e Italkit engine\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003evalve\u003c\/strong\u003e operates by \u003cstrong\u003eexhaust gas pressure\u003c\/strong\u003e, and thanks to its adjustment, it can be set for \u003cstrong\u003eprogressive opening from 6000 rpm to 8500 rpm\u003c\/strong\u003e depending on the desired engine configuration.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIt is possible to \u003cstrong\u003eset\u003c\/strong\u003e the start of the valve \u003cstrong\u003eopening\u003c\/strong\u003e among \u003cstrong\u003e9 different positions.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003epositions\u003c\/strong\u003e are \u003cstrong\u003enumbered\u003c\/strong\u003e, with \u003cstrong\u003e1 being the softest position\u003c\/strong\u003e, and \u003cstrong\u003e9 the hardest position\u003c\/strong\u003e. The \u003cstrong\u003egreater the hardness\u003c\/strong\u003e, the valve opening will \u003cstrong\u003eoccur\u003c\/strong\u003e at \u003cstrong\u003ehigher RPM.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTo \u003cstrong\u003einstall\u003c\/strong\u003e it on \u003cstrong\u003eAprilia Rotax\u003c\/strong\u003e cylinders (which use a valve electronically operated by cable), you must \u003cstrong\u003edrill the valve seat base with a 4.5mm drill bit\u003c\/strong\u003e down to the bottom of the exhaust port. \u003cbr\u003e\u003cbr\u003eTo carry out this operation, you can use the gasket included in the kit as a template. \u003cstrong\u003eHighly recommended for those looking to improve engine feel and response at low and mid-range.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Italkit","offers":[{"title":"Default Title","offer_id":54305329840513,"sku":"VER.01.125","price":177.16,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0860\/6223\/5959\/files\/ver.01.125.jpg?v=1750263179","url":"https:\/\/motoscoot.net\/en\/products\/adjustable-pneumatic-exhaust-valve-for-cylinder-rotax-122-d-54mm-italkit","provider":"Motoscoot","version":"1.0","type":"link"}