Well, if the individual is wearing the outlaw-gang colors, they are already self-profiling. Otherwise the cops should leave riders alone.
Even so, I'd like to know how much "biker crime" affects the general public, drugs prostitution, violent crime etc and who's doing it. Especially in comparison to say...."black-on-black" pr moslem crime.
I know a cop that pulls over every car he sees with upscale rims and illegal tint. He keeps the tint meter on the front seat of his cruiser. It is all just an excuse to identify and sniff out any other possible crimes. If people don’t like it they can take the illegal tint off their windows.