Hey Ol' probably because your "trans" never had been worked on and the slack taken care of! Hahaa haha!
I wish I would have known about it when I was racing my *Penton* 125
In the early 1970s. Where did you ride?
We All know people's are around almost everywhere, like Ants! Sooner or later, I'm sure someone will find your hub! And it would really be great if there is a easy to find place to post things found, or lost. I am disappointed, so far, that have not found such a place .