{"product_id":"ncy-super-trans-kit-qmb139-buddy-50-roughhouse-1200-1171","title":"NCY Super Transmission Kit - Buddy 50, 139QMB, GY6 50cc","description":"\u003ch2\u003eTotal Transformation: NCY Super Transmission Performance Kit\u003c\/h2\u003e\u003cp\u003eEliminate CVT lag and unleash the full potential of your 50cc engine with the \u003cstrong\u003eNCY Super Transmission Kit\u003c\/strong\u003e. This is the most comprehensive bolt-on performance set available, engineered to deliver explosive off-the-line acceleration, lightning-fast downshifting, and a higher top-end cruising speed. Whether you are navigating heavy city traffic or opening it up on the backroads, this professionally curated kit replaces your entire drive system with high-performance components designed to work in perfect harmony.\u003c\/p\u003e\u003ch3\u003eWhat’s Inside the Box?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNCY Ultralight Drive Face:\u003c\/strong\u003e Reduced rotational mass for faster RPM pickup and improved throttle response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoated Golden Pulley \u0026amp; Pressure Plate:\u003c\/strong\u003e Features a specialized low-friction coating and optimized ramp angles for smooth, \"notching-free\" shifting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNCY Racing Clutch \u0026amp; Bell:\u003c\/strong\u003e High-friction clutch shoes and a vented bell provide maximum grip and heat dissipation, eliminating clutch \"shudder.\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Tuning Roller Set:\u003c\/strong\u003e Includes three full sets of 16x13mm weights (7g, 8g, and 9g) so you can perfectly dial in your RPMs to your specific weight and riding style.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1000 RPM Compression Spring:\u003c\/strong\u003e Provides the ideal return tension for rapid downshifting when decelerating or climbing hills.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eComprehensive Fitment Guide\u003c\/h3\u003e\u003cp\u003eThis kit is a direct performance upgrade for \u003cstrong\u003e50cc and 80cc (139QMB\/GY6)\u003c\/strong\u003e engines:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eBrand \/ Engine Family\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eCompatible Models\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGenuine Scooter Co.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuddy 50, RoughHouse 50, Black Cat 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQMB139 \/ GY6 50cc\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTaoTao, Wolf, Chicago Scooter Co. (Go\/Go Max), Icebear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSYM \/ ADLY\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFiddle 50, Jet 50, Fox 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e80cc Big Bore Kits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompatible with 147QMD and upgraded 139QMB engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariator Size:\u003c\/strong\u003e 16mm x 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Weights:\u003c\/strong\u003e 7g, 8g, and 9g (Sets of 6 each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Rate:\u003c\/strong\u003e 1000 RPM \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutch Type:\u003c\/strong\u003e NCY Performance Non-Adjustable\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cblockquote\u003e\n\u003cstrong\u003eMechanic's Note:\u003c\/strong\u003e This is our #1 recommended upgrade for any 50cc scooter.\u003c\/blockquote\u003e\u003cblockquote\u003e\n\u003cstrong\u003eFitment Warning:\u003c\/strong\u003e For Genuine Buddy 50 and RoughHouse 50 owners, you \u003cstrong\u003emust\u003c\/strong\u003e reuse your original OEM outer drive face for proper clearance.\u003c\/blockquote\u003e\u003cblockquote\u003e\n\u003cstrong\u003eTuning Tip:\u003c\/strong\u003e Start with the 8g weights for a balanced feel; if you want more \"zip\" off the line at the expense of fuel economy, drop down to the 7g weights.\u003c\/blockquote\u003e\u003cblockquote\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Always install a fresh \u003cstrong\u003e\u003ca href=\"https:\/\/www.scooterworks.com\"\u003ePremium Drive Belt\u003c\/a\u003e\u003c\/strong\u003e when installing this kit to ensure maximum grip!\u003c\/blockquote\u003e\u003ch4 style=\"color: #983d3c;\"\u003eThis product is intended for off-road use only.\u003c\/h4\u003e\u003ch4 style=\"color: #983d3c;\"\u003eThis product is not intended for use on public roads or land.\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003e*Performance upgrades are considered racing parts and are not covered by warranty. \u003c\/strong\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in;\"\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-size: 12.0pt; line-height: 107%;\"\u003e\u003ca href=\"https:\/\/www.p65warnings.ca.gov\/sites\/default\/files\/downloads\/factsheets\/motor_vehicle_parts_fact_sheet.pdf\"\u003eWARNING: California’s Proposition 65\u003c\/a\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in;\"\u003e \u003c\/p\u003e\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in;\"\u003e\u003cu\u003e\u003cspan style=\"font-size: 12.0pt; line-height: 107%;\"\u003eSKU: 1200-1171 \u003cbr\u003eVendor: NCY\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e","brand":"NCY","offers":[{"title":"Default Title","offer_id":48111895150779,"sku":"1200-1171","price":229.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/1340\/6651\/files\/1200-1171_a6f4963a-93e5-42d3-8a57-a50d64377409.jpg?v=1784298046","url":"https:\/\/thriftyscooters.com\/products\/ncy-super-trans-kit-qmb139-buddy-50-roughhouse-1200-1171","provider":"Thrifty Scooters","version":"1.0","type":"link"}