Universal Parts Completely Assembled Non Emissions Style Cylinder Head with 64mm Valves for 50cc 4-stroke QMB139 engines.
- Intake Port Diameter: 17mm
- Exhaust Port Diameter: 18mm
- Valve Length: 64mm
Universal Parts Completely Assembled Non Emissions Style Cylinder Head with 64mm Valves for 50cc 4-stroke QMB139 engines.