While cycling the Carretera Austral, one of my pannier fell off. Only reason for that, must be because I didn't fit it correctly that one time. Cause it didn't happen again on the rest of the 900 odd Km we did of the Austral or the rest of our 12+ months tour.
I was sooo glad that we have a friendly French couple on a tandem behind us, as they found the pannier about 5 miles back from where I found out we had lost the kitchen pannier. Cause I would have been spend adding a 10km round trip to that days riding on that surface.
Yes, back then the Carretera Austral was that *rough* that I didn't notice the loss of a pannier, compared to what it is now. I just saw a new movie about the building of the Carretera Austral. Many sections that I have burned into my mind to be rougher than the worst of Sustrans "best". Now have nice smoooooooth tarmac.
Don't worry the tandem was paid in chocolate for their service.