I am thinking of purchasing a quality set of studded tires for either my mountain bike or my folding bike. While I wouldn't get much use out of them in any one year, I'd expect to use them for a long time if they would last.
So assuming that they spend most of their time in storage, how long would they last?
Are there methods of storage that could lengthen their lifespan?
Given a choice would you use 26" tires on a mountain bike (no fenders) or 20" tires on a folder (with fenders) for riding in light snow with a variety of ice?