I doubt it. I have personally seen bikers singled out and searched at Canadian airports, even by uniformed police officers nowhere near security, simply because they were bikers. They were sitting in the bar beside the terminal minding their own business when they were taken away to be checked for outstanding warrants, and this was in a domestic terminal. They were wearing insignia at the time.
LEOs in Canada have declared war on biker gangs. Smart bikers will ship their colours to their destination and not take them along on the flight if they want to avoid hassles. Because of their criminal activities they are covered by the wording of the legislation as terrorist organizations.