Naraku QMB139 Adjustable Drive Sheave


Logo Naraku Adjustable Drive Sheave for 50cc QMB139 engines.

The more linear slots on this drive sheave allow for better acceleration. This part can also be called a torque driver or secondary slider.

Please see our Warranty & Returns Policy.

5 in stock

SKU: 137-30 Category:


  • Overall Outer Diameter: 118mm
  • Inner Diameter: 33.5mm

Additional information

Weight 0.9 lbs