Mini bike 125cc 4 speed

[Elmo688]

Does any body have any experience with the 125cc swap on this style mini bike

 

[DaddyJohn]

 

[Charles S]

https://oldminibikes.com/forum/index.php?threads/shifter-minibike-build.133618/

 

[Strigoi]

I had one for awhile with a 110cc/4spd Lifan. It was fun, but wasn't that fast. 1st gear was damn near useless even with the tiny rear sprocket. My modded 212 bikes would have walked all over it.

Ended up trading it to a friend of mine and he's currently working on putting a 175cc 2 stroke in it. The last pic shows it with that engine installed.

 

[Elmo688]

Mine gets up to about 44mph with 19 tooth up front and 48t in back. What did yours do with your sprocket set up

 

[Strigoi]

Mine gets up to about 44mph with 19 tooth up front and 48t in back. What did yours do with your sprocket set up

I never measured the top speed. If I had to guess it was probably around 35-40mph.