Went looking for a cage to put on the early 70’s Fuji that is almost ready to go. Thought I had an old handlebar cage that would be right for the era. Pulled it out, and turns out it is NOT the rotating mount cage I thought it was. It actually is a QR cage. Once mounted, the cage comes off easily. The clamps stay on the frame.
Understand why you might want to remove a cage...doing a TT and you want less weight, but there are still clamps left on the frame that are not exactly featherweight.
Anybody ever encounter one of these? Is so, what was tge design intent? It came with the original aluminum bottle, so I know it dates to sometime before maybe 1970