We are committed to getting orders out ASAP. Due to COVID-19 we are seeing major delivery delays. Once shipped, the delivery times are out of our control. So please be patient during this time. Stay safe! FREE SHIPPING ON ORDERS OVER $175.
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We are committed to getting orders out ASAP. Due to COVID-19 we are seeing major delivery delays. Once shipped, the delivery times are out of our control. So please be patient during this time. Stay safe! FREE SHIPPING ON ORDERS OVER $175.
Cart 0
80cc QMB139 Transmission Gears 17% increase
160-5

80cc QMB139 Transmission Gears 17% increase

$93.00 $105.00

Jasil Top Racing 18/50 Gear Set for 50cc QMB139 GY50 4-Stroke Engines. +17% Gear Ratio for increased top speedIt is recommended this gear set be used after installing a big bore cylinder kit. A stock engine will not have enough power to make use of a taller gear set.


Made in Portugal! No press required like common tall gear sets, drop in and go!

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