Originally Posted by
ph0rk
That's your
wrong vernacular.
Motorcycle, Scooter, and Moped all mean different things.
Among the first images to pop up with a google search on the term "moped" is this:
And growing up it always meant something with a motor and with pedals.
You can define it however you want. 95% of the pictures on google image search are of non-pedaled "mopeds." I believe that's enough to be considered "common." In the US, I don't even think we have the pedaled versions. I think in my lifetime I've seen one of them (now that I try to remember), where as I've seen thousands of non-pedaled versions.