A friend of mine has owned an XR600 for years. He is an intermediate plus rider who does most of his trail riding at Stonyford(full of big hills). He is concidering getting a CRF450 for his next bike, but he is hesitant that he won't beable to ride the CRF as easily as the XR. He feels comfortable with the XR. Have any of you XR riders ever rode a CRF. If so,what did you like, and dislike? Thanks for the imput.