has anyone ever seen this happen?
hear's the story:
riding tonight with my friend and his bike starts to make some noise. i tell him it that it sounds like he isn't in gear (friction shifting). he agrees, gently starts to shift, and then we hear the crunching noise. he comes to a dead stop. we look and see what happened.
turns out, his derailleur is now pointing towards the sky and the rear drop out is now wide open.
does anyone have any ideas as to what may have happened? its a mid to late 80's peugeot if that helps. thanks.