I have been to bike night at that specific Hooters several times several years ago. It used to be about the bikes, the guys and the boobs.. uh, I mean women and the short shorts, etc. Only saw one fist fight in about 3 years of attending - although I never attended every single one.
It's a shame that MC gangs are allowed to ruin it for everyone else. If they are the ones causing the problems, ban them from showing up and keep it going.
Moosie