Originally Posted by
jefnvk
I guess I am just of the opinion that if I'm going on a months long tour to such a place, carrying a spare is much easier than trying to rig up any of that!
Also kinda befuddled at the prevalence of disc brakes in such a place, but not 700c tires

I'm not talking about tires, i'm talking about wheel failure. You can't carry a spare wheel.
As for the disc brakes, two words: mountain bikes. They appeared on mountain bikes years and years before road or touring bikes. The technology crossed over from dirtbikes.