What is a good dirt bike for a teen?

[m w]

I am 14 years old, 5'11" to 6' feet tall, whats good one for me

 

[Lewis Burgess]

i would recomend a py90
you can find these on ebay
for around £100-£150
These bikes are semi automatic.(Change Gear with your foot with no clutch.)
hope this helps.