im a 15 year old, about 5'10 170, and im getting another bike. i used to have a ttr-125 about 10 months ago, when an atv swerved in front of me when i was going about 45+mph...snapped my femur...but i got my clean bill of health and were lookin for another bike, as you can imagine, my ttr was totaled. im thinking about going to the yz-125, now i know that size wont matter since i know people smaller than me running 250's, but how much of a power-hog is this bike? will i be able to ride in the mountains with this bike? how much faster is this bike than my old one? what do you think would be an okay price on a great condition 2001 yz-125? if you guys could help me answer these questions, it would be greatly appreaciated. thanks...............git r done.