@DurableAce has moved@bazzargh That sounds very unfortunate.
I have ridden it twice on my best bike. The only incident occurred when the cobbles shook open my saddle bag zip and some contents fell out. I retrieved some but lost a multitool and a T-30 key. Since then, I’ve used saddle bags that have closure clips.
It must be quite lucrative for the locals near to the first cobbled sections! I saw bike computers and lots of bottles that had fallen off and not been retrieved.