Police in the Brussels-Capital/Ixelles area intercepted the driver of an electric scooter travelling at around 60km/h on Thursday.
The person was stopped in the Alhambra district of Brussels during a traffic operation, the the Brussels-Capital/Ixelles police zone said in a statement on Friday.
Of the 48 mopeds checked, 11 were fined for speeding.
The operation led to three drivers being issued with tickets.
Offences included failing to have a valid driving licence and driving under the influence of drugs, among other things, the statement added.