Big Bore Kit 50mm GY6 Performance Engine 64mm Valve
Big Bore Kit 50mm GY6 Performance Engine 64mm Valve
Boost your scooter's power with this comprehensive 50mm Big Bore Kit, featuring a high-performance 64mm valve for enhanced airflow and combustion. Designed for GY6 engines, this kit transforms your ride with a significant upgrade in displacement and efficiency.
- 50mm Cylinder Bore Kit: Increases engine displacement for substantial power gains.
- 64mm Valve Cylinder Head: Optimized for superior air intake and exhaust flow, maximizing combustion efficiency.
- Complete Gasket Set: Ensures a perfect, leak-free seal for the short case QMB139 engine.
- Roller Weights Included: Fine-tune your engine's performance and acceleration characteristics.
- Oil Pump & Sprocket: Maintains optimal lubrication for engine longevity.
Compared to standard 50cc engines, this kit offers a dramatic increase in torque and top-end speed. It brings your GY6 engine closer to the performance levels of larger displacement models, providing a thrilling upgrade without replacing the entire engine. This kit is engineered to integrate seamlessly, offering a robust power boost for riders seeking more from their scooter.




