{"product_id":"mgt1-pwb-52127-1125154","title":"Vespa PX E Arcobaleno 150 [1981-1991] - Cylinder kit gray cast iron Ø 63","description":"\u003ch2\u003eCylinder kit Ø 63 for Vespa PX E Arcobaleno 150\u003c\/h2\u003e\u003cp\u003eThe MALOSSI cylinder kit gray cast iron Ø 63 is designed for the Vespa PX E Arcobaleno 150 from the 1981-1991 model year range. The bore is 63 mm, the stroke is 57 mm and the displacement is 178 cm³. Revised fluid dynamics with profiled overflow channels specifically direct the gas flow and support efficient combustion and thorough purging.\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_38486069-0d89-432e-a35e-1b2fb2b4435e.jpg?v=1788579753\" alt=\"Vespa PX E Arcobaleno 150 [1981-1991] - 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 PX E Arcobaleno 150 [1981-1991] - Cylinder kit gray cast iron Ø 63 – product view\u003c\/figcaption\u003e\u003c\/figure\u003e\u003ch3\u003eSophisticated cylinder and piston design\u003c\/h3\u003e\u003cp\u003eThe inlet channels are designed for high turbulence. The rear transfer ports feature a dual slope (1-2) profile, while the redesigned outlet directs the gas flow towards the exhaust. The two-ring piston Ø 63 was developed for high operating temperatures. Its geometry supports even guidance in the liner and reduces the metallic ringing noise when idling.\u003c\/p\u003e\u003ch3\u003eCylinder head and technical data\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCylinder head: hemispherical\u003c\/li\u003e\n\u003cli\u003eCompression ratio: 1:10.5\u003c\/li\u003e\n\u003cli\u003ePiston rings: 2\u003c\/li\u003e\n\u003cli\u003eTransfer channels: 6\u003c\/li\u003e\n\u003cli\u003eRecommended carburetors: Si 24\/24, PHBH 30\u003c\/li\u003e\n\u003cli\u003eSpark plug: IW 27\u003c\/li\u003e\n\u003cli\u003ePerformance range: 14\/22\u003c\/li\u003e\n\u003cli\u003eProcessing level: Easy\u003c\/li\u003e\n\u003cli\u003eUsage: Urban\/Sport\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe redesigned head features sinuous cooling fins, a hemispherical inner contour and an inclined, yet central spark plug position. Two centering bushings support the coupling between head and cylinder; separation occurs via an O-ring.\u003c\/p\u003e\u003ch3\u003eVehicle assignment and notice\u003c\/h3\u003e\u003cp\u003eSuitable for Vespa PX E Arcobaleno 150, built between 1981 and 1991. The product is intended exclusively for competitions at designated venues in accordance with the regulations of the relevant sports associations. No liability is assumed for improper use.\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_5082f8a2-9574-4510-995e-747af583486d.jpg?v=1788579753\" alt=\"Vespa PX E Arcobaleno 150 [1981-1991] - 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 PX E Arcobaleno 150 [1981-1991] - Cylinder kit gray cast iron Ø 63 – detailed view\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"PWB","offers":[{"title":"Default Title","offer_id":57268411629894,"sku":"MGT1-PWB-52127-1125154","price":591.29,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/4616\/8646\/files\/1125154-1_38486069-0d89-432e-a35e-1b2fb2b4435e.jpg?v=1788579753","url":"https:\/\/motorize-canada.com\/products\/vespa-px-e-arcobaleno-150-1981-1991-cylinder-kit-gray-cast-iron-o-63","provider":"Motorize","version":"1.0","type":"link"}