i started on a 89 GS500, learned alot on it. Then i bought an 04 zx6rr and laid it over with in the first 2 weeks of owning it. I loved the power and the speed and that got me in trouble. In my opinion, it doesnt matter what you learn on as long as you THINK RESPONSABLY. I think it was quoted in that Cheesy movie, biker boyz "There are 2 types of riders, those that have gone down, and those that will go down" Just something to think about. Usually people lay down there first bike. What ever you decide to do, RIDE SAFE.