It did not have fenders and I had rebuilt all the bearings with oodles of waterproof marine trailer grease about 500km prior. I do have a fendered bike but it wasn't ready to take on that day, unfortunately. I ended up tearing the bike down and there was some wear on the bottom bracket and the non-drive rear hub race and cones were damaged, lower headset is full of grit. I've rebuilt hundreds of hubs and bottom brackets and never had an issue until that day and if it was an issue with the hub adjustment, bearings or grease one would think it wouldn't just affect the non drive side. Too bad.

I think most of the noise was a grit-laden chain and freewheel and I can't imagine the damaged/being damaged hub helped.