No, not sure at all, just the closest match I could find so wondering if it would work. If I do need to get 597 size (26") rims, any idea where I could source them? They want me to replace the rims but want to keep the tyres.
If I do need to get 597 size (26") rims, any idea where I could source them?
Nobody seems to make them, so you're going to be searching in the second hand market. Check the tyre markings to see if the 26×1¼ has suffix EA1 (597) or EA3 (590)
Are you sure you want 590? 26×1¼ on a 1948 sports bike might well mean 597