Sounds silly. Why not a DC motor?

Ignoramus32687 wrote:
I had a visitor yesterday who responded to my craigslist ad about a
free 200V 7.5 HP 3 phase motor. A pleasant, intelligent young man. I
asked him what he was doing with the motor, and he replied that he was
going to build an electric motorcycle. His plan is, apparently, to
have a motorcycle based on batteries, inverter, phase converter, and a
3 phase motor drive. I just could not believe what I heard. (and still
have doubts about his veracity) Am I going crazy or does this sound
like a completely insane idea to you?

i