I guess this is on subject, but it's only a word of advice re the original question. I'm in PA, and here a bike can only be a moped if it's under 50cc, as well as meeting some other criteria. I'm pretty much resisting my overwhelming urge (boy it'd be fun!) to put a kit on my Puch because then it would be a motorcycle. My insurance would go up, I'd need to get a motorcylce license (means another permit and driving test), and I'd have to get it inspected. Now I know that I could put a kit on it and no one would really know, but if I ever got into an accident and my insurance co. somehow found out I was riding something that wasn't legally a moped, they'd cut me loose in a hearbeat. Just something to think about.