Universal Parts GY6 Gear Set – Drum Brake

Universal Parts rear gear rebuild set for 150cc and 125cc GY6 4-stroke engines with rear drum brake. Includes the counter shaft gear, final gear, output shaft, and final drive shaft.
Overall Length of Final Drive Shaft: 134mm (5.25 inches)
Final Drive Shaft Splines: 19
Final Gear Teeth: 40
Counter Shaft Gear Teeth (Large): 42
Counter Shaft Gear Teeth (Small): 13
Output Shaft Gear Teeth: 15
Output Shaft Length: 174mm
Output Shaft Splines: 19
SUPPORTED MODELS: GY6 QMI/QMJ 152/157, Various unlisted makes/models