About 5km/h
45mph with no mods
50 mph and over
totaly depends on what bike it is a i have a 50cc twist and go that does 66mph my friend has a geared bike that does just about 70 soo if you get the right bike it can be pretty fast
23 mph unless you have a kit on it. does that help?
45 to 48 [if under 85lbs]
As fast as you want it to go. Ha ha ha! I just lied!
Usually 25 to 35mph, they can be modified to go faster......
i think it goes 40mph or faster
depending on restrictions 30 to 35mph stock.
6000000000000000 mph
80km/h