The EU has electric bicycles that don’t provide any power when going over 25 km/hour and speed pedelecs (https://en.wikipedia.org/wiki/Electric_bicycle#S-Pedelecs), which stop providing power at 45 km/hour.

The former typically are treated as bicycles (can go everywhere bicycles are allowed), the latter as lightweight motor cycles (⇒ requires insurance, some driver’s license and helmet use, can’t go on regular bicycle lanes, may be restricted from using some separate bike paths)