The sizing chart like Sheldon said, is more of a guideline, you can still run 23c on rims that wide, in fact it's pretty comfortable and were able to run a lower pressure than recommended (25c tyres on 25mm wide rims).
@edscoble started
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The sizing chart like Sheldon said, is more of a guideline, you can still run 23c on rims that wide, in fact it's pretty comfortable and were able to run a lower pressure than recommended (25c tyres on 25mm wide rims).