I'd register inspect tag and insure my bike if I could. I have a motorcycle license...the bike is considered home made hence no way to insure inspect or license the bike. I just can't for the life of me understand the difference in me peddlin this thing around and the motor pushin it....oh wait at 48 years old and 250 pounds a heart attack! I dang near had one b4 I motorized this thing I am not kidding. I do think you ought to be at least 15 to operate on low speed streets...off road do what ya like. 100cc needs turn signals brake lights ect. I try my best never to turn left or right or stop abruptly anywhere I go. I try my best to plan my moves WAY in advance. I don't count on cars trucks or even motorcycles to do anything but the opposite of what I need them to do. IMO they are all running in a broken loop of murphy's law.