Another note: Don't use 1" tires on those rims. I tried them out (a friend had them from an old racing-style bike) and they would not stay seated on the rim at full pressure. You'd get bulges where the tire would be unseating from the rim making it seem like you had a flat-spot on the rim. These are wider touring-style rims and should take 1 1/4" tires ideally. You could probably get away with 1 1/8". However, 1" does not work. In fact, it's just not safe.

Just wanted to warn you in case you were thinking to put the skinnest tires you could find on it...