How old do you have to be to drive the Kawasaki KX125?

It doesnt reall matter how old you are it depends on how tall and how expierienced you are. Id say you should be around 5ft 6"and up to be able to even tip toe on one. A kx125 has quite a bit of power with an explosive powerband. some people even flip them over if they dont know how to ride them.