{"product_id":"polini-contessa-big-bore-kit-72cc-yamaha-zuma-50-2t","title":"Polini Contessa 72cc Big Bore Kit - Minarelli 2T","description":"\u003cp\u003ePolini's entry-level Contessa 72cc Big Bore Kit is an ideal first performance upgrade for riders looking to extract more power from their 2-stroke horizontal Minarelli engine. Relatively straightforward to install and tune, it delivers a meaningful displacement bump without requiring extensive engine work or exotic jetting. Compatible with Yamaha Zuma, BWS, Vino, Jog, Genuine Buddy, RoughHouse, Rattler, and many other Minarelli horizontal-engine scooters.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e72cc displacement upgrade from stock 50cc\u003c\/li\u003e\n\u003cli\u003eCast-iron cylinder for durability and heat retention\u003c\/li\u003e\n\u003cli\u003eAluminum piston with 2 piston rings included\u003c\/li\u003e\n\u003cli\u003e10mm wrist pin with circlips included\u003c\/li\u003e\n\u003cli\u003e2 exhaust studs (6mm) included\u003c\/li\u003e\n\u003cli\u003eMade in Italy by Polini\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDisplacement: 72cc\u003c\/li\u003e\n\u003cli\u003ePiston Diameter: 47mm\u003c\/li\u003e\n\u003cli\u003ePiston Rings: 2x 47mm\u003c\/li\u003e\n\u003cli\u003eWrist Pin: 10mm (with circlips)\u003c\/li\u003e\n\u003cli\u003eCylinder: Cast iron\u003c\/li\u003e\n\u003cli\u003eExhaust Studs: 2x M6\u003c\/li\u003e\n\u003cli\u003eDimensions: 7.5\" L x 6\" W x 5\" H\u003c\/li\u003e\n\u003cli\u003eWeight: 4.5 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eModel Fitment\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eZuma 50 (2T)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eBWS 50 (2T)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eVino 50 (2T)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eJog 50 (2T)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGenuine\u003c\/td\u003e\n\u003ctd\u003eBuddy 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGenuine\u003c\/td\u003e\n\u003ctd\u003eRoughHouse 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGenuine\u003c\/td\u003e\n\u003ctd\u003eRattler 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAprilia\u003c\/td\u003e\n\u003ctd\u003eSR (Pre-2000)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdly\u003c\/td\u003e\n\u003ctd\u003eVarious models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eMinarelli horizontal 2T engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBreak-in Note:\u003c\/strong\u003e Ride 200–300 miles before running at full throttle for extended periods.\u003c\/p\u003e\u003cp\u003eThis product is intended for off-road and racing use only. Not legal for use in California on pollution-controlled vehicles. Check local laws before installing.\u003c\/p\u003e\u003cp\u003eCalifornia Prop 65 Warning: www.p65warnings.ca.gov\u003c\/p\u003e","brand":"Polini","offers":[{"title":"Default Title","offer_id":67964636856641,"sku":"1100-1459","price":325.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/7785\/2225\/files\/az-p012-9977-0-1100-1459_6d30928e-6226-4922-9181-d02c0d8842dd.jpg?v=1792558028","url":"https:\/\/azscooterparts.com\/products\/polini-contessa-big-bore-kit-72cc-yamaha-zuma-50-2t","provider":"AZScooterParts","version":"1.0","type":"link"}