hawaiian guy tryin bmx friction drive

I like 20" wheels

I like bikes with small wheels. I think a friction drive would be best because the grubee type motors won't fit inside a BMX frame and would be really slow with a 44 or 36 tooth cog on a 20" wheel.

Some people say the friction rollers won't work with knobbie tires, but I think they will work ok with cheap ones that have short knobs, or ones with a checker cut tread pattern.

Good luck on your build. A lot of people have made these on youtube with common BMX bikes and weedeaters, turning a BMX axle peg or a spark plug socket that has sand epoxied to it.
 
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