you gotta be like 6 feet tall to be able to reach both your feet on a full size dirt bike. I'm only 5 6. maybe 5 7 on a good day.
Do you work on the bike yourself? Your going to want to learn if you dont. It will get expensive quick. These 2 stroke engine rev like crazy and have to be rebuilt quite often. I rebuild my rm 250 about every 50 hours of riding. It still runs good after that, but just not very good. My 85 yamaha 4 stroke, on the other hand, I dont even remeber changing the oil in that thing. Runs like a champ.
Have you been on any mx tracks yet? If your in-experienced like i am, prepare to see 10 and 12 year old kids flying pass you. At first its disturbing, but I got use to it.
--NooP