i have a 2006 yz450f and like it alot, except for the fact that it wears my arms out and takes alot to corner. i've been on 450's for three years and before that was on 125 smokers...so, i've never been on a 250f. i ride mostly track and a little trail. i'm 33 and in good shape, but don't want to own and maintain two bikes. i posted this here, because yamaha is the only choice. can you guys give me some help?