NCY
NCY 72cc Big Bore Piston & Cylinder Kit - Yamaha, Genuine 2T
Description
Unlock more power from your 50cc 2-stroke scooter with the NCY 72cc Big Bore Kit. 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.
Key Features
- 72cc displacement upgrade from stock 50cc
- 47mm forged aluminum piston with 2 piston rings
- 10mm wrist pin with G-clips included
- Full top-end overhaul kit — everything needed for installation
- Direct bolt-on for Minarelli 50cc horizontal 2-stroke engines
- Requires carburetor re-jetting after installation (larger main jet recommended)
Technical Specifications
- Displacement: 72cc
- Bore: 47mm
- Wrist Pin: 10mm
- Piston Rings: 2 included
- Engine Type: 2-stroke Minarelli horizontal
- Weight: 8.0 lbs
Model Compatibility
| Brand | Model |
|---|---|
| Genuine Scooter Co. | Buddy 50, RoughHouse 50, Rattler 50, Black Cat 50 |
| Yamaha | Jog 50, Zuma 50 (2T), Vino 50 (2T) |
| Adly & Chinese 2T | Minarelli 50cc horizontal 2-stroke platforms (see full list below) |
About NCY
NCY 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.
California Prop 65 Warning: www.p65warnings.ca.gov
*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.
Product Diagrams
Model Fitments
Brands: Amstar, Amigo, Ascend, Baotian, Bashan, Blade, Boom, Chicago Scooter Company, Dongfang, Roketa, Baotian, Bashan, BMS, Cool Sports, E Ton, Fly Wing, Eagle, Fly, Italica, Riya, Ice Bear, Jackel, Jet Moto, JCL, Taotao, Peace, JM Star, Jonway, Kazuma, Keeway, KMD, Kymco, Lance, Lifan, Linhai, Loncin, Longbo, Fuxin, Jiajue, Tao Tao, Tao Motors, Trailmaster, Maxtrade, Meitien, Motofino, Motorino, NST, Panterra, Panther, Qlink, Yiben, Red Streak, Redcat, Roketa, Schwinn, Strada, SYM, Tank, Terminator ,Tomberlin, TNG, United Motors, Vento, Vitacci, Wildfire, Wolf, X-Treme, X-Pro, Yongfu, ZNEN, Zhongneng , Zhilong, Geely, Wangye, ZH and more Manufactured by: Taizhou Zhongneng Motorcycle Co.; Jiangsu Zhongneng Motorcycle Co.; Jiangsu Meijunte Technology Co.; Taizhou Qianxin Vehicle Co.; Ningbo Dongfang Lingyun Vehicle Made Co.; Taizhou Zhilong Technology Co.; Zhejiang Jiajue Motorcycle Manufacturing Co.; Zhejiang Gelly Ming Industrial Co.; Taizhou City Senglong Motorcycle Manufacture Co.; Jiangsu Sacin Motorcycle Co.; Jiangsu Linhai Power Machinery Group Co.; Zheijiang TaoTao Vehicles Co.; Zhejiang Senling Motorcycle Co.; Sanmen County Yongfu Machine Co; Taizhou Jiaojiang Zhiwei Motorcycle Manufacture Co.; Huzhou Daixi Zhenhua Technology Trade Co.; Taizhou Zhongneng Motorcycle Co.; Zhejiang Riya Motorcycle Co.; Ningbo Longjia Motorcycle Co.; Taizhou Zhongneng Motorcycle Co.; and more
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
