A few years ago the EU introduced a change/addendum to the A2 class restriction barring holders of that license class from driving bikes that were too limited i

A few years ago the EU introduced a change/addendum to the A2 class restriction barring holders of that license class from driving bikes that were too limited in order to get their vehicle certification: Motorcycles of a power not exceeding 35 kilowatts (47 hp) and with a power/weight ratio not exceeding 0.2 kilowatts per kilogram (0.12 hp/lb) and not derived from a vehicle of more than double its power.