Wario Bike

The Wario bike is one the fastest bike in the game. It can be driven by Wario or any other heavy characters. Once you manage to master it, it can be hard to defeat, but once you crash, you've pretty much lost the race, unless you have time to get back up to speed, that is. Granted, in the right hands, this bike can win races, but mess up and its tough to come back.