As soon as I saw this picture I started feeling itchy all over :yuck:
But have you seen the forks on that bike?! Third World utility bikes are amazing in my opinion. I own a Chinese 'Phoenix' agricultural bicycle, but it only has spring assisted braced forks and a single top frame tube. I dream of finding a bike with twin top tubes and a fully sprung fork like the one under that green haystack.
Bicycles are probably stronger than many of us give them credit for (well, some may be beefed up a little)....I am always impressed when I see the circus (I can't even think of the name cirque de something)....when they have like a dozen or so people hanging off a bike....wow....I did like the real world examples of bikes being used for work and hauling....amazing!
I have broken couple frames; and every time it has been stress fatigue, smaller cyclic loads over a period of time that did it(my sisters bike, one of them...cause I was 15 then and enjoyed doing BMX and jumping with it again and again...). On average a one time excess does not kill a frame. Unless is beyond all design safety factors, like an elephant stepping on it or something of that nature.
So those on that cirque (du Solei?) bike might see their day comming...when something goes wrong with the "tired" frame and gravity might just take care of the rest. Hope not. Anyway they are "professionals", I guess they know.