{"product_id":"mgt1-pwb-52123-1125154","title":"Vespa PX 125 [1978-2016] - Cylinder kit gray cast iron Ø 63","description":"\u003ch2\u003eMALOSSI cylinder kit gray cast iron Ø 63 for Vespa PX 125\u003c\/h2\u003e\u003cp\u003eThe MALOSSI cylinder kit gray cast iron Ø 63 is intended for the Vespa PX 125 in the entire model range from 1978-2016. The bore of 63 mm and the stroke of 57 give a displacement of 178 cm3. The revised internal fluid dynamics with profiled overflow channels specifically align the gas flow and support uniform flushing.\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_4c21b192-2b49-4810-a3f6-73b930c62cf0.jpg?v=1788579700\" alt=\"Vespa PX 125 [1978-2016] - 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 125 [1978-2016] - Cylinder kit gray cast iron Ø 63 – product view\u003c\/figcaption\u003e\u003c\/figure\u003e\u003ch3\u003eFunction and construction\u003c\/h3\u003e\u003cp\u003eThe inlet channels promote a controlled flow with high turbulence. The rear overflow channels feature a double slope (1-2) profile, while the outlet is redesigned for gas flow towards the exhaust. The two-ring piston Ø 63 is designed for high operating temperatures. Its shape supports even guidance in the liner and reduces the play between piston and cylinder.\u003c\/p\u003e\u003cp\u003eThe cylinder head features a hemispherical combustion chamber shape, an inclined yet central spark plug position and revised cooling fins. Two centering bushings support the coupling of the 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 Ø: 63 mm\u003c\/li\u003e\n\u003cli\u003eDisplacement: 178 cm3\u003c\/li\u003e\n\u003cli\u003eStroke: 57\u003c\/li\u003e\n\u003cli\u003ePiston compression: Racing\u003c\/li\u003e\n\u003cli\u003ePiston rings: 2\u003c\/li\u003e\n\u003cli\u003eOvercurrent channels: 6\u003c\/li\u003e\n\u003cli\u003eCompression ratio: 1:10.5\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\u003eArea of use: urban\/sport\u003c\/li\u003e\n\u003cli\u003eProcessing level: Easy\u003c\/li\u003e\n\u003cli\u003ePerformance range: 14\/22\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVehicle assignment and notice\u003c\/h3\u003e\u003cp\u003eSuitable for Vespa PX 125, built between 1978 and 2016. 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_1973b73a-2b35-4efc-ba6e-a4bce144f540.jpg?v=1788579700\" alt=\"Vespa PX 125 [1978-2016] - 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 125 [1978-2016] - Cylinder kit gray cast iron Ø 63 – detailed view\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"PWB","offers":[{"title":"Default Title","offer_id":57268411400518,"sku":"MGT1-PWB-52123-1125154","price":423.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/4616\/8646\/files\/1125154-1_4c21b192-2b49-4810-a3f6-73b930c62cf0.jpg?v=1788579700","url":"https:\/\/motorize-shop.com\/products\/vespa-px-125-1978-2016-cylinder-kit-gray-cast-iron-o-63","provider":"Motorize","version":"1.0","type":"link"}