Originally Posted by
nfmisso
A 58-559 tire is has a LARGER OD than a 25-622....... Generally 559 tires are wider than 622 tires, and thus the overall diameter difference is a LOT less than the rim diameter difference.
I sort of assumed the OP was not going to fit a 700-23 or 25 mm tire but something more in keeping with the mtb wheel he is replacing.