Hey im 13 yrs old, 5'3", 130lbs. I have never owned a bike but rode my buddies RM125 and had to get a bike. I will ride in trails and an open field, maybe take it to the track once in awhile. i would perfer a 2-stroke. I would like a motocross bike, i don't want a trail bike that sucks. my neighbor has a blaster and i can keep up with the RM125 on it, so im not a sucky rider. I would probably buy a used bike so money is no issue.