This is a warning to all children (mainly boys) using motorcycles in public places but I doubt that the offenders will read this (even if they can read) or that their parents are interested.
This activity is antisocial behaviour, a noise nuisance, a danger to yourself and others. You cannot hide. You and the vehicles are easily identifiable.
Please note that you are being continuously recorded and reported to the Police. This evidence of your selfish, thoughtless, intrusive, unacceptable and unlawful behaviour is accumulating and it is only a matter of time before you are identified and caught. Please be assured that you will be held responsible and accountable for your own actions and thus the consequences. And then of course there is the unanswered question of parental responsibility?