Your motorcycle becomes a monowheel when you pop a wheelie.

At least it's more dignified than going through an airport

At least the modern version doesn't have a blade of death attached to the front of it, ready to cause carnage on anything foolish enough to get in its way.

I have to wonder if there's some amount of "bigger wheel make vehicle go faster" mentality here, similar to the design philosophy of this locomotive from half a century earlier:

Link with more details: http://douglas-self.com/MUSEUM/LOCOLOCO/9footer/9footer.htm

Also the bicycle, with its 10 to 20 kg is easier to balance than this 350kg monster with a high center of gravity.

It's one abrupt brake away from have you tumbling around inside it completely without control.