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