Bianchi Pista (Sold)

This is my first track bike. I have had it for little less then a year and its had some wear and tear. Main headache about this bike is the 3rd month I got this bike the lockring came loose, I tightened it back up and thought it would be fine. A few months later, it was stripped. I wasn't sure if it was something I did (riding to hard, but I reall doubt that) or was it a mechanical error.