Hi, i'm looking to get my first dirtbike. I am 6'1 and have been deciding between either a 230 or a 4 stroke 250, such as the YZ250F. I was wondering if a YZ250F is to fast for a new dirtbiker? some people have told me it is, other say its a good beginner bike. Also I know that the YZ250F will have a higher maintenance cost, but would it be considerably higher than a 230?