that guys got his mounted pretty well though....the hangers are ovaled so the hammer cant spin, its pitched forward a bit so when the bike hits a bump the hammer doesnt shoot straight up, it slams back into place when the bike comes back down...and the weight pushing on the hammers weight keeps it down too....but i'd feel safer if it had some rubber on the inside of the holder or something that.

I have to say, if it cant be removed easily with one hand, then its just a decoration. I mean I really dont plan on using it, but bolting it to the side is a cop-out.