Richmonds moped gang. some of the guys are pretty rad, and if you get to know them enough they'll let you skate their warehouse which has a HUGE bowl now.
I'd say it's all just a big ol joke. Like there are crews of moped riders and shit I'm sure, But i doubt they hate eachother and act as if it's a gang. I don;t think anyone on a moped could tell a nother group of mopeds to stay out of their neighborhood and be serious