My read is that you still can't be clocked at more than thirty. If you are, you can't be riding a moped. Only a moped can be registered as a moped. So if, and this is a big if, you have a run in with the law on say your puch with a 74 cc engine you still aren't a moped on so many levels with the exception to the claims that it makes less than 4 hp AND HAS PEDALS.
My experience with "traffic court" in my home county is YOU, BY DEFINITION, ARE ALWAYS WRONG AND THE COP IS ALWAYS RIGHT.
This is how we pay for everyone's in "public services " pensions. Otherwise they don't give a shit. They are kinda candid about this last point.