Naraku QMB139 Adjustable Drive Sheave

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 Note: CSC Go scooters will require 3x clutch pins 151-148 to install this drive sheave. (Please see related items.)

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