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38cc 4-stroke friction drive motorized bike conversion kit

suitable for 12'' to 26'' bike

We also have 33cc two stroke,49cc two stroke engine.Please contact us for more details.

Auto clutch!

Only US$279.8


Sea mail: US$77

Air mail: US $128

Speed post: US$139.8


The movement of rear wheel is due to the friction brought by the rotator !

It is very smooth,quiet, durable and reliable!

It is also easy to start on first pull.

This kit is very easy to install!

It includes user manual which help you to maintain the engine!

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