I m 13, 5'8'' and weight 170 rode four wheelers all my life and want a dirt bike for a challenge what do i get?

[Free Bird]

i probaly want a 125 2 stroke or a 4 stroke 250 but what brand and which one and i want a sport not a trail bike peicer thanks for any answers

[Ryan Reed Racing]

If you want sport deffinatley go with the 125. i have a 125 and my next bike would be 450 but i would say get the 125 first.