The Wario Bike is Wario's motorcycle from the WarioWare series. It was originally designed by Wario's employee at WarioWare, Inc., Dr. Crygor. However the only proof from that comes from the Wario Bike Trophy in Super Smash Bros. Brawl.
The Wario Bike is yellow in color with red flame designs on the side, it also has a 5,000cc, 4-stroke, 350HP engine capable of pushing it down the road at up to 217 miles per hour, but sadly it only gets less than 5 miles to the gallon.
Super Smash Bros. BrawlEdit
In Brawl, it is Wario's Side special move. With this move, he will ride his motorcycle, and smash into any player in the way, damaging them. Doing this as Wario-Man, at top speed, will kill him, as he will fly off of the arena. If the player tilts the Control Stick in the opposite direction Wario is facing, he will do a 180 degree turn. If he falls off, he can get back on by walking up to it and using side special again. (If the player does a regular special attack near the bike, Wario will eat it.) He can also heave it at an enemy, but it doesn't fly very far. The Wario-Bike, when attacked too many times, will shatter. The detatched wheels make acceptable projectiles, as they fly much farther, but they do little damage.
The Wario-Bike is also a trophy, in Super Smash Bros. Brawl.
It made its first appearance in the Mario Kart series in Mario Kart Wii. It was Wario's alternate vehicle so he would not only drive karts.