im 18, about to go to MMI, and i ride a yz-125 at the moment (yeah its a yamaha and its a dirtbike, but kawasaki is where my heart is as far as street bikes) which provides me with riding experience off road so i wouldnt be a noob out of the shoots, so that said, ill be out of school in a year and a half, which is when ill be looking to get a bike for the roads. i realize i will only be 19, and after consideration, i also realize a 2006 zx6rr will probably not be the best choice as a first bike. but what would you say would be good for me to learn on, get good on, and have enough power that i can mess around on the track when a track day rolls around. everybody says for new riders, a 250, but is that really an investment? thanks for the help.