I'm trying to decide between the crf 100 and crf 150. The 150 has 12 hp and weighs 223# The 100 only weighs 165 #. If the 100 has only a bit less hp than the 150, then since the 100 is much lighter, it may accelerate faster and have a highter top speed. What is the reality of this comparision? Has anyone driven both or know the facts about the crf 100's top speed or horsepower? I have never driven either. Thanks.