Ok so I cant decide i have a yz250f picked out and i have looked at yz125 the 250 is pretty much stock but all the yz have pretty much the "works"... the both want around $1300... I am new to dirt bikes but i have ridden a few of my friends bikes but all 4 strokes and under 125cc. engine work isnt a problem and i can 4 wheel and snowmobile... i am a natural athlete and all my friends race bikes. They all ride 250f's i will build a track and ride but i wont race and i will ride a lot of trails i am 15 and wanna keep it till i go to college. I will learn fast and i want something fun but i dont wanna put alot of time or money into it. and i want it to be realiable and less matience. im 5'11 and 155lbs.