Yeah I could see that, but really the majority of bike tires are not good at that not just fat bike tires. You are right, the equivalent of a Schwalbe Marathon Plus or similar extra flat proof tire is not available for fat bikes. But you could run 29'' rims on your Pugs with a much more street worthy tire. Then swap in the fat tires/rims for the more off-piste adventures. Your city streets sound a lot more treacherous that ones I normally ride on.


A complete redesign of the interface? It's a clincher tire and a large tube, not exactly a radical design. And IMHO not that hard to fix a flat. I'm prepared for it, I've done it, and I'll be doing it again. I agree that changing a flat in sh**ty conditions sucks on any bike. But until I get that follow car with the mechanics in it I am fully willing to take the risk. I consider it a very acceptable part of the cycling adventure not a reason to throw the bike away.

You have to know what your limits are and draw your line in the sand or the snow or the street as the case may be. This isn't even close for me but, obviously YMMV.