Product Overview Description Upgraded 100cc Cylinder Head & Valve Assembly QMB139 / QMI139 4-Stroke Engines. Our high quality parts are the exact replacement part for many Chinese manufactured brands and models of Chinese Mopeds and Scooters. 64mm Valves Intake Bolt Hole Spacing: 44.75mm Exhaust Bolt Hole Spacing: 49.75mm Reviews (No reviews yet) Write a Review
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