A question for those that know(JP?). I have seen a number of definitions of what a modern moped is but haven't found the law wording. The direct.gov.uk site uses a definition I've seen on a number of official sites and is thus: A moped is a motorcycle that has the following features: a.. maximum design speed not exceeding 50 kilometres per hour (km/h) (about 31 miles per hour (mph) b.. an engine capacity no greater than 50 cc c.. it can be moved by pedals, if the moped was first used before 1 September 1977 Is this really true or is there more to it? If it is true it would suggest a de-restricted moped is *still* a moped because it has a "design speed not exceeding 50km/h" (the fact that it can now do more clearly does not affect what it was designed to do). Comments from those that know please (with references if possible) rather than all the usual opinions that have bugger all to do with the facts.