I have many issues with Critical Mass but it’s hard to argue that events like this aren’t building a strong sense of community. But that’s urban cycling in general. When something becomes popular, it goes through phases and the popularity of singlespeeds, track bikes and fixed gears have helped catalyze that, even in Indonesia. Would this event have such a large turn out, say 4 years ago? Probably not. If you’re in Jakarta, swing through next time!