{"product_id":"semipolea-de-variador-malossi-d-107mm-piaggio-scooter-50-2t","title":"Half-pulley of Variator Malossi d.107mm Piaggio Scooter 50 2T ","description":"\u003cp\u003e\u003cstrong\u003eMalossi Ventilvar 2000 fixed half-pulley Ø107 mm 14º\u003c\/strong\u003e for \u003cstrong\u003ePiaggio Scooter 50 2-Stroke\u003c\/strong\u003e engines.\u003c\/p\u003e\n\u003cp\u003eThe fixed half-pulley forms one of the two faces of the front pulley of the CVT transmission. When the rollers move the movable half-pulley, both faces come closer together and force the belt to operate on a \u003cstrong\u003eprogressively larger diameter\u003c\/strong\u003e, lengthening the transmission ratio as RPM increases.\u003c\/p\u003e\n\u003cp\u003eIn this Ventilvar, the outer diameter of \u003cstrong\u003e107 mm\u003c\/strong\u003e defines the available surface for the belt travel, while the \u003cstrong\u003e14° angle\u003c\/strong\u003e determines how the side of the belt rests on the pulley. This geometry is important because it affects contact, pressure on the belt, and its movement throughout the entire variation range.\u003c\/p\u003e\n\u003cp\u003eIn a transmission, it is important that the belt can \u003cstrong\u003erise uniformly to the outer area of the pulley\u003c\/strong\u003e without encountering irregularities, steps, or damaged surfaces. Any wear on the track can alter the ratio, generate heat, and cause uneven wear on the sides of the belt.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eVentilvar\u003c\/strong\u003e design also incorporates cooling fins on the outer face. As it rotates together with the crankshaft, these fins help move air inside the transmission case, reducing heat buildup around the \u003cstrong\u003eVariator, belt, and CVT assembly\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is especially important in tuned engines, where the transmission operates for longer at \u003cstrong\u003ehigh RPM and with greater load on the belt\u003c\/strong\u003e. Excessive temperature can alter the behavior of the belt material and accelerate its degradation.\u003c\/p\u003e\n\u003cp\u003eDuring installation, we especially recommend checking the \u003cstrong\u003ewidth and condition of the belt, pulley surfaces, Variator bushing, rollers, and maximum transmission travel\u003c\/strong\u003e. In a Racing setup, marking the pulley faces makes it possible to visually check how far the belt is rising and verify that the available diameter is being used correctly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Malossi.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e Ventilvar 2000.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e ventilated fixed half-pulley.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter diameter:\u003c\/strong\u003e 107 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack angle:\u003c\/strong\u003e 14°.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e Piaggio Scooter 50 2-Stroke.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e CVT Racing transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Variator:\u003c\/strong\u003e 5115644 \/ 5118238.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e installation of this half-pulley requires \u003cstrong\u003eremoving the electric starter system\u003c\/strong\u003e. This is a configuration intended for Racing transmissions where the operation of the Variator, pulley, and belt assembly is prioritized over maintaining the original starter system.\u003c\/p\u003e","brand":"Malossi","offers":[{"title":"Default Title","offer_id":68153559056775,"sku":"6120409B","price":35.09,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0860\/6223\/5959\/files\/6120409B.webp?v=1794215564","url":"https:\/\/motoscoot.net\/en\/products\/half-pulley-of-variator-malossi-d-107mm-piaggio-scooter-50-2t","provider":"Motoscoot","version":"1.0","type":"link"}