Originally Posted by Rezso
I thought that a 4 stroke engine turned a 'bicycle' into a moped or motorcycle. Is that incorrect?
Not sure what your laws are but mopeds are both 2 and 4 stroke. Here its 50cc max and needs pedals,and gross 2 hp max.
Now that depends on the local poilice if they are striket or not, or how fast you go, here its 20 mph.
If you run a small 79,or 99cc they will prolly won't know the difference,unless you are doing out of the limits on the restricions.
Good luck on your choice.........Curt