Originally Posted by
Salamandrine
Too sum up, ISO 597 was once the 2nd most obscure of the five different 26 inch tire sizes. Now it is the most obscure. Just by the Kendas. There's no other choice.
This. Blackwall or skinwall, take your pick, then find the best deal.
Anything else is old NOS (like those WW's on eBay right now) and not advisable to ride on.
Want anything else? Plan on an ISO 590 conversion.
-Kurt