I met a man several months ago who bought a Hayabusa for his first motorcycle. I walked into a restaurant with my helmet and jacket in hand. He asked me if the bike outside was mine. I told him. He looked at me in disbelief and asked if I could handle that. I laughed and told him "more or less...". Then he goes on to tell me about how he is scared to take his Hayabusa out on the streets??? Hm...
The problem is that he didn't learn on something that would've been easier to maneuver. And that is going to be your problem.
Yup, you go right ahead and grab yourself one of those 1000cc crotch rockets. Because apparently working on motors and riding dirt bikes qualifies you to competently operate a litre-bike on the street.

Just don't further pollute the gene pool in the mean time, please? :-/