Alot is going to depend on size of the rider, terrain, etc. but you should be able to get up to 60 - 70 mph. This is a light little bike with a tiny engine so be prepared for vibration and the wind pushing you around at that speed.
My V-star 250 will do 80MPH. I weigh 188LBS. Your weight will make a difference.
The real tron motorcycle can hit 120 MPH.
Seven (7)
The ferrari motorcycle is said to have a top speed of 160 miles per hour.
About 20000 mph
A mini motorcycle goes about 54mph
43 mph
The Triumph Spitfire motorcycle can go as fast as 95 miles per hour. In less than 16 seconds, it can go from zero to 60 miles per hour, which is pretty fast.
My 2004 XR80R, dirtbike, went around 45mph.
my guess it has a max speed of 140-160mph
A 40cc engine wont even touch 40mph. It stresses a 175cc engine to go 40mph. A 40cc engine will go roughly 10 miles an hour based on how much the engine weighs and how much weight you put on top of it.
A Motorcycle Boot is really cool thing. If you try it you can see how fast you can go over the water and how much time you can save with motorcycle boots.