weed eater friction bike engine size

[kidgambit]

someone told me u could use less then a 25cc and not over a 32cc engine. is that true. and what size bike can u use

 

[pocdragon]

someone told me u could use less then a 25cc and not over a 32cc engine. is that true. and what size bike can u use

you can use what ever engine you want!

ive seen itty bitty gas sipping ultralight weedeaters @ 18.5CC

all the way up to large 6.5HP 200CC 4 stroke monsters with 4" oak drive rollers

it really just depends on how you mount the engine, and how you clutch the power to the wheel

as for a bike's size:
what ever you have handy, or whatever your comfortable riding. most friction drives eed a solid back wheel (without read suspension) but otherwise a mount above the wheel(rack mount) would be an easy thing

good rule of thumbs are:
1"-1.5" drive roller (bicycle peg)
scissor clutch (lifts the engine off the tire)
dead solid engine mount (tight and strong)

 

[curtisfox]

pocdragon is right but it also depends on the law on what is legal and what is not.
You have to check with the DMV on that..........Curt