I am a 6.4' athletic male. I am 22 years old but driving around major metropolitan areas used to be a major part of my job so I have solid driving experience under my belt. I have experience riding dirt bikes. I have only been maybe 10-12 times but I would go all day and due to my athleticism and youth I am comfortable moving pretty fast up and down black diamonds trails on a 400cc Honda 4 stroke (only bike I would ride). I spent my youth riding road bicycles all over, all day too. What I am trying to say is I am less of a fish than most new riders. I am also very tall, 6 4' like I said, and many of the bikes good for taller people have larger motors. I am about 200 lbs and strong. I want to ride the bike an hour or two a day in the morning and night under low traffic conditions practicing on streets and highway. I know the risks of riding motorcycles. I'm a moderately conservative person yet I love adrenaline and pushing my limits under the right conditions. I know I should start on something smaller. But given my specific situation how small? I would love some suggestions. Maybe you could give me an opinion on how ambitious (in terms of pushing my limits) each suggestion would be. Thank you so much!