{"product_id":"ncy-cylinder-kit-10mm-pin-72cc-minarelli-50-horizontal-prck1","title":"NCY 72cc Big Bore Piston \u0026 Cylinder Kit - Yamaha, Genuine 2T","description":"\u003cp\u003eUnlock more power from your 50cc 2-stroke scooter with the\u003cstrong\u003e NCY 72cc Big Bore Kit\u003c\/strong\u003e. Designed as a direct bolt-on upgrade for Minarelli horizontal engines, this kit delivers a noticeable bump in displacement, throttle response, and top-end pull — all without major engine modifications. Ideal for riders looking to breathe new life into a Genuine Buddy 50, Yamaha Zuma, or any compatible Chinese 2T platform.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e72cc displacement upgrade from stock 50cc\u003c\/li\u003e\n\u003cli\u003e47mm forged aluminum piston with 2 piston rings\u003c\/li\u003e\n\u003cli\u003e10mm wrist pin with G-clips included\u003c\/li\u003e\n\u003cli\u003eFull top-end overhaul kit — everything needed for installation\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on for Minarelli 50cc horizontal 2-stroke engines\u003c\/li\u003e\n\u003cli\u003eRequires carburetor re-jetting after installation (larger main jet recommended)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDisplacement: 72cc\u003c\/li\u003e\n\u003cli\u003eBore: 47mm\u003c\/li\u003e\n\u003cli\u003eWrist Pin: 10mm\u003c\/li\u003e\n\u003cli\u003ePiston Rings: 2 included\u003c\/li\u003e\n\u003cli\u003eEngine Type: 2-stroke Minarelli horizontal\u003c\/li\u003e\n\u003cli\u003eWeight: 8.0 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eModel Compatibility\u003c\/h3\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\u003eGenuine Scooter Co.\u003c\/td\u003e\n\u003ctd\u003eBuddy 50, RoughHouse 50, Rattler 50, Black Cat 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eJog 50, Zuma 50 (2T), Vino 50 (2T)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdly \u0026amp; Chinese 2T\u003c\/td\u003e\n\u003ctd\u003eMinarelli 50cc horizontal 2-stroke platforms (see full list below)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch3\u003eAbout NCY\u003c\/h3\u003e\u003cp\u003eNCY is a respected Taiwanese manufacturer of performance scooter parts, known for precision engineering and broad fitment across popular 50cc platforms. Their big bore kits are a go-to upgrade for riders and shops looking for reliable, bolt-on performance gains.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.p65warnings.ca.gov\"\u003eCalifornia Prop 65 Warning: www.p65warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e*Performance upgrades are considered racing parts and are not covered by warranty.  Intended for off-road use only. Check local laws regarding pollution-controlled vehicles.\u003c\/strong\u003e\u003c\/p\u003e","brand":"NCY","offers":[{"title":"Default Title","offer_id":46758351012120,"sku":"PRCK1","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/products\/PRCK1_2a7e8df0-661b-4d90-a415-5c732c18e79d.jpg?v=1780084170","url":"https:\/\/www.scooterworks.com\/products\/ncy-cylinder-kit-10mm-pin-72cc-minarelli-50-horizontal-prck1","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}