{"product_id":"ncy-super-transmission-kit-buddy-50-139qmb-gy6-50cc","title":"NCY Super Transmission Kit - Buddy 50, 139QMB, GY6 50cc","description":"Total Transformation: NCY Super Transmission Performance Kit Eliminate CVT lag and unleash the full potential of your 50cc engine with the NCY Super Transmission Kit . 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. What’s Inside the Box? NCY Ultralight Drive Face: Reduced rotational mass for faster RPM pickup and improved throttle response. Coated Golden Pulley \u0026amp; Pressure Plate: Features a specialized low-friction coating and optimized ramp angles for smooth, \"notching-free\" shifting. NCY Racing Clutch \u0026amp; Bell: High-friction clutch shoes and a vented bell provide maximum grip and heat dissipation, eliminating clutch \"shudder.\" Triple Tuning Roller Set: 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. 1000 RPM Compression Spring: Provides the ideal return tension for rapid downshifting when decelerating or climbing hills. Comprehensive Fitment Guide This kit is a direct performance upgrade for 50cc and 80cc (139QMB\/GY6) engines: Brand \/ Engine Family Compatible Models Genuine Scooter Co. Buddy 50, RoughHouse 50, Black Cat 50 QMB139 \/ GY6 50cc TaoTao, Wolf, Chicago Scooter Co. (Go\/Go Max), Icebear SYM \/ ADLY Fiddle 50, Jet 50, Fox 50 80cc Big Bore Kits Compatible with 147QMD and upgraded 139QMB engines Technical Specifications Variator Size: 16mm x 13mm Included Weights: 7g, 8g, and 9g (Sets of 6 each) Spring Rate: 1000 RPM Clutch Type: NCY Performance Non-Adjustable Mechanic's Note: This is our #1 recommended upgrade for any 50cc scooter. Fitment Warning: For Genuine Buddy 50 and RoughHouse 50 owners, you must reuse your original OEM outer drive face for proper clearance. Tuning Tip: 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. Pro Tip: Always install a fresh Premium Drive Belt when installing this kit to ensure maximum grip! This product is intended for off-road use only. This product is not intended for use on public roads or land. *Performance upgrades are considered racing parts and are not covered by warranty. WARNING: California’s Proposition 65 SKU: 1200-1171 Vendor: NCY","brand":"ncy","offers":[{"title":"Default Title","offer_id":48045269549243,"sku":"1200-1171","price":229.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/1340\/6651\/files\/1200-1171_a6f4963a-93e5-42d3-8a57-a50d64377409.jpg?v=1783055595","url":"https:\/\/thriftyscooters.com\/products\/ncy-super-transmission-kit-buddy-50-139qmb-gy6-50cc","provider":"Thrifty Scooters","version":"1.0","type":"link"}