What I want to know is, when would it be considered an entirely different moped? Is the moped a frame? I know people who say they have X many mopeds, but sometimes one is just a nonfunctioning engine and wheel on a frame. If you replace all the parts, is it still the same moped? Or is "moped" defined by "engine"? I just bought an identical moped to the one I already own in hopes of using it as a parts bike when one of them dies; so now I own two, but some day, I'll only have one. Where will the other one have gone?
I hope my little engines get 15,000 miles on them!