Which bike is the best all-round mx bike from the japanese manufacters?? the YZ, KX, CR or RM?? Any can anyone tell me some trouble spots with these bikes, and maybe some things that are better or one bike better than the other for a fastish intermedaite/slow expert rider, also which bike had the best sup. for a larger rider, im 6'5, and 90kg's. Thanks if anyone can help me out.