NCY Super Transmission Kit - Buddy 50, 139QMB, GY6 50cc

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 & Pressure Plate: Features a specialized low-friction coating and optimized ramp angles for smooth, "notching-free" shifting. NCY Racing Clutch & 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