There's only one reason people start on 600cc bikes.......So you don't hurt yourself. I had a friend that started on an R1 and he wrecked it a month later doing a wheelie. And he had been riding dirt bikes and stuff for 10-15 years. He went through 3 brand new R1's in one summer. Go ride an R6 and then an R1. Tell me which you think you should start on. lol.