I've been getting mixed opinions about what to get for my sons first dirtbike. He's 11 years old and 5', 100lbs. Hes been on snowmobiles since he was 3 so he does understand the machines are not toys. I'm just curious how many think an 80/85 is too much? I lean toward the 2 stroke mostly because mechaniclly our family knows them better than four stroke...that and trying to chose a bike his dad will be happy with since he'll be involved in taking him riding as well. Thanks for your input :)