I am 14 years old and I have been racing BMX for 6 years. I want to start motocross but I dont know what size bike I need. I want the CR 80 Expert. I weigh 130 pounds and I am 5 foot 8 inches. I am learning how to ride a dirtbike pretty good, but my question is "AM I TOO BIG (TALL) FOR THE CR 80 EXPERT? Thanks for the help.