Saw this online somewhere, cracks me up, spoke cards and the matching frame/rim color are the instant ID around here for a fixter (fixie hipster). From what I've seen same type crowd as Critical Mass, will scream obscenities at you at how ungreen you are as they toss their empty beer can and cigarette butt on the ground.
Fixie: Originally intended for track use, and until recently the preserve of hardcore urban riders (principally couriers), the fixed-wheel bike has, in just a few years, been traduced by bandwagon-jumping hipsters.
Fixter-spotters can award themselves extra points for observing the following features:
U-lock in back pocket
Velocity Deep V rims (fluorescent colours +2 points)