{"product_id":"mgt1-pwb-52122-1125154","title":"Vespa Cosa 125 [1988-1997] - Cylinder kit gray cast iron Ø 63","description":"\u003ch2\u003eMALOSSI cylinder kit gray cast iron Ø 63 for Vespa Cosa 125\u003c\/h2\u003e\u003cp\u003eThe MALOSSI cylinder kit gray cast iron Ø 63 is designed for the Vespa Cosa 125 built between 1988 and 1997. The bore of 63 mm and the displacement of 178 cm³ form the basis for the revised cylinder concept with internal fluid dynamics and six running channels.\u003c\/p\u003e\u003cfigure style=\"margin:32px 0;text-align:center\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0871\/4616\/8646\/files\/1125154-1_39c84dee-72af-4f4d-99a6-de37498dfeac.jpg?v=1788579687\" alt=\"Vespa Cosa 125 [1988-1997] - Cylinder kit gray cast iron Ø 63 – product view\" loading=\"lazy\" style=\"display:block;width:100%;height:auto;border-radius:12px\"\u003e\u003cfigcaption style=\"margin-top:8px;color:#666;font-size:14px\"\u003eVespa Cosa 125 [1988-1997] - Cylinder kit gray cast iron Ø 63 – product view\u003c\/figcaption\u003e\u003c\/figure\u003e\u003ch3\u003eFlow-optimized design\u003c\/h3\u003e\u003cp\u003eThe profiled overflow channels align the gas flow at the inlet and promote high turbulence. The rear channels feature a dual slope (1-2) profile. The outlet has also been tuned with a revised profile and a wider design for an orderly gas flow towards the exhaust. The design supports more efficient combustion and clean purging.\u003c\/p\u003e\u003ch3\u003ePiston and cylinder head\u003c\/h3\u003e\u003cp\u003eThe two-ring piston Ø 63 has a profile developed for high operating temperatures. The adjusted piston clearance supports uniform guidance in the liner and reduces twisting around the pivot pin axis. Two piston rings ensure smooth sliding and tightness against the pressure created in the combustion chamber.\u003c\/p\u003e\u003cp\u003eThe hemispherical cylinder head features spiral cooling fins and an inclined, yet central spark plug position. Two centering bushings support the precise connection of head and cylinder; the separation is done by an O-ring.\u003c\/p\u003e\u003ch3\u003eTechnical data\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMaterial: aluminum\u003c\/li\u003e\n\u003cli\u003eDiameter: 63mm\u003c\/li\u003e\n\u003cli\u003eStroke: 57\u003c\/li\u003e\n\u003cli\u003eCompression ratio: 1:10.5\u003c\/li\u003e\n\u003cli\u003ePiston compression: Racing\u003c\/li\u003e\n\u003cli\u003eNumber of segments: 2\u003c\/li\u003e\n\u003cli\u003eCylinder head: hemispherical\u003c\/li\u003e\n\u003cli\u003eSpark plug: IW 27\u003c\/li\u003e\n\u003cli\u003eRecommended carburetors: Si 24\/24, phbh 30\u003c\/li\u003e\n\u003cli\u003ePerformance range: 14\/22\u003c\/li\u003e\n\u003cli\u003eProcessing level: Easy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVehicle assignment and use\u003c\/h3\u003e\u003cp\u003eSuitable for the Vespa Cosa 125, built between 1988 and 1997. The product is intended exclusively for competitions at designated venues in accordance with the regulations of the relevant sports associations. It must be used properly.\u003c\/p\u003e\u003cfigure style=\"margin:32px 0;text-align:center\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0871\/4616\/8646\/files\/1125154-2_3444a13c-9573-4116-bf92-887551b4f93a.jpg?v=1788579687\" alt=\"Vespa Cosa 125 [1988-1997] - Cylinder kit gray cast iron Ø 63 - detailed view\" loading=\"lazy\" style=\"display:block;width:100%;height:auto;border-radius:12px\"\u003e\u003cfigcaption style=\"margin-top:8px;color:#666;font-size:14px\"\u003eVespa Cosa 125 [1988-1997] - Cylinder kit gray cast iron Ø 63 - detailed view\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"PWB","offers":[{"title":"Default Title","offer_id":57268411367750,"sku":"MGT1-PWB-52122-1125154","price":591.55,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/4616\/8646\/files\/1125154-1_39c84dee-72af-4f4d-99a6-de37498dfeac.jpg?v=1788579687","url":"https:\/\/motorize-canada.com\/products\/vespa-cosa-125-1988-1997-cylinder-kit-gray-cast-iron-o-63","provider":"Motorize","version":"1.0","type":"link"}