WHAT? calipers to check tires? OMG are we that critical? you are only talking 3 millimeters difference. I would say you have a 99.99999% chance that they will fit. my first real bike came with 700x20 tires and I have run 700x 38 cross tires on it.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk