NEW - 100cc Cylinder Head & Valve Assembly GY6 / QMB139 4-Stroke Engines.
100cc w/ 69mm Valves for Scooter Big Bore Kit
Our high quality parts are the exact replacement part for many Chinese manufactured brands and models of Chinese Mopeds and Scooters.
Valve Length: 69mm
Exhaust Bolt Hole Spacing: 49.75mm
Intake Bolt Hole Spacing: 44.75mm