umm it cos there unregistered and unlicescened bike as they are not Road Worthy. i got done riding out in reedy creek bush, got about hmmm 700 buck worth of fines, i was too on my l's they got for all tha jazz about not have L plates on and not driving with some one on openings, i was looking throw tha fine the other day. no helmet was for me like $240 bucks for on a moto. i think fine just have to be paid wit in 28 days of getting them, unless they gave u a a little white slip saying you have to go to court i would think not, but be on the safe side ring the police station to find out more.