Universal Parts Crankshaft Assembly for 150cc and 125cc GY6 4-stroke QMI152/157 and QMJ152/157 engines.

• Stroke: 57.8mm
• Overall Length: 285mm
• Flywheel Thread Size: M12x1.25
• Flywheel Thread Length: 14mm
• Drive End Thread Size: M12x1.25
• Drive End Thread Length: 14mm
• Inner Diameter (piston pin hole): 15mm
• Number of Splines: 19
• Main bearings included

GY6 QMI/QMJ 152/157