Originally Posted by
ironwood
They were scarce a few years ago, but there are now a lot of tires available. May if you are touring Kyrgyzstan or Patagonia you might be better off with 26" , but you can find 650b many places in Europe. Folding spares are also easy to carry.
+1. 650B is becoming a more prominent tire size. Look at the
Soma Express, it's a Panaracer Pasela TG with reinforced sidewalls and a kevlar (folding) bead.
Marc