I have an Aprilia RS50, and techincally they are mopeds because they have a 50cc engine meaning 16 year olds can ride them, but once you get on the Aprilia RS50 and start riding, you soon realise this bike is far from a ´moped´ as every aspect of it other than the engine is very similar to its 100cc older brother (the Aprilia RsV 1000).