What are the biker rules?

Excuse me, could you please elaborate on the so-called "biker rules"? I'm not entirely familiar with the term, and I'm curious to know if it refers to a set of guidelines or code of conduct that bikers adhere to while riding on the road or engaging in other biking activities. Are these rules widely accepted among the biking community, or are they specific to certain groups or organizations? Additionally, what kind of consequences might a biker face if they violate these rules? Thank you for your time and consideration.