Anyone good enough to ride a fixed gear (fgfs) over a ramp or dirt jump probably has some kind of custom bike by that point because of the broken parts leading up to that skill level.
I think the person slammed into something head on. Doesn't take much to bend hi-ten. He could have also jumped off of the bike and then it ghost rode into a wall or something.
I don't think anyone in this particular sub-forum does any kind of trick biking (there's an fgfs subforum that gets a post once every few years or so).
Some people (like me) may have a bmx background and may mess around once in a while but I am assuming that most just like to ride.
Last edited by BicycleBicycle; 07-27-19 at 12:59 PM.