UPDATE: Top speed 36 MPH
Homemade 6.5 HP mini bike (ungoverned)
Here is a link to the plans I based this off of:
http://www.smartkartparts.com/freemin...
Top speed 32mph
I changed the sprockets around so that it goes 12-12, 14-60
making the bike go much faster but with little starting torque.
This is my simple homemade minibike which I welded up out of some scrap steel I had laying around. I made it on a budget build and in the end the total cost was less than $250 it has a decent top speed which could be raised if I has used a torque converter.