Gear Upgrade Set Transmission 50cc 139QMB 17T/49T

Regular price $18.95
Modified your 50cc for more RPM's but now you're all torque and no top end?
This Taiwan Quality Performance gear set will bump up your top speed so you can better use those RPM's!

This is the most popular, easy to install upgrade to do!
Fits most GY6 50cc Scooters and ATV's
QMB139

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