I should have written that costing $500 or less is very important, because if the bike got stolen in Guatemala or anywhere else, I wouldn't want to be out much money. It would just be the one I travel with, so that is another reason for thrift.

Chinese bureaucrats presumably think that Taiwan is part of China, but most people, especially the Taiwanese, don't seem to. I suppose that buying from an actual Chinese owned company wouldn't be as bad as buying from an offshoring US one.