{"product_id":"mgt1-pwb-52124-1125154","title":"Vespa PX T 5 [1985-1993] - Cylinder kit gray cast iron Ø 63","description":"\u003ch2\u003eMALOSSI cylinder kit for Vespa PX T 5 from 1985 to 1993\u003c\/h2\u003e\u003cp\u003eThe cylinder kit with 63 mm bore is tailored to the Vespa PX T 5 in the full year range from 1985 to 1993. The displacement is 178 cm3. Redesigned fluid dynamics with profiled transfer channels align the gas flow in the inlet and support uniform scavenging and efficient combustion.\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_436194b5-8d43-4757-ab36-63ea30a09507.jpg?v=1788579713\" alt=\"Vespa PX T 5 [1985-1993] - 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 T 5 [1985-1993] - Cylinder kit gray cast iron Ø 63 – product view\u003c\/figcaption\u003e\u003c\/figure\u003e\u003ch3\u003eRevised cylinder and channel geometry\u003c\/h3\u003e\u003cp\u003eThe inlet channels are designed for high turbulence. The rear transfer channels have a double slope profile (1-2) that uses the Coandà effect and increases the flow rate compared to conventional designs. The exhaust has also been redesigned with a redesigned profile and a wider ignition setting for an orderly flow of gas towards the exhaust.\u003c\/p\u003e\u003ch3\u003eTwo-ring piston and cylinder head\u003c\/h3\u003e\u003cp\u003eThe two-ring piston with Ø 63 was developed for high operating temperatures. Its profile supports uniform guidance in the liner, reduces the clearance between piston and cylinder and reduces the risk of seizing. The two piston rings ensure uniform sliding and tightness against the pressures generated in the combustion chamber.\u003c\/p\u003e\u003cp\u003eThe hemispherical cylinder head features redesigned, twisted cooling fins and an inclined, yet central position of the spark plug. Two centering bushings support the precise connection of head and cylinder; Both components are separated exclusively by an O-ring.\u003c\/p\u003e\u003ch3\u003eTechnical data\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBore: 63mm\u003c\/li\u003e\n\u003cli\u003eDisplacement: 178 cm3\u003c\/li\u003e\n\u003cli\u003eStroke: 57\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\u003eCylinder head: hemispherical\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\u003eArea of use: urban\/sport\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\u003eImportant note\u003c\/h3\u003e\u003cp\u003eThis product is intended exclusively for competitions at designated locations in accordance with the regulations of the relevant sports authorities. 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_881e6a78-a576-478e-b39f-674135d0a16a.jpg?v=1788579713\" alt=\"Vespa PX T 5 [1985-1993] - 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 T 5 [1985-1993] - Cylinder kit gray cast iron Ø 63 – detailed view\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"PWB","offers":[{"title":"Default Title","offer_id":57268411466054,"sku":"MGT1-PWB-52124-1125154","price":593.57,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/4616\/8646\/files\/1125154-1_436194b5-8d43-4757-ab36-63ea30a09507.jpg?v=1788579713","url":"https:\/\/motorize-australia.com\/products\/vespa-px-t-5-1985-1993-cylinder-kit-gray-cast-iron-o-63","provider":"Motorize","version":"1.0","type":"link"}