I thought the 13 inch tires were tough but the 15's are even harder. I want a radial in whitewall that would be the same size as a 600 15. There just isn't anything out there. This tire measures 26.2 diameter just by using a tape measure. All the tire conversions on the net I find show the replacement in radial is 185 70 15 but that diameter is much smaller. I can't even find the exact bias replacement at Coker. All the whitewalls they have are way to wide or the tire size is wrong. I would be ok with a thinner whitewall but can't even find the right tire in any white wall.

Does anyone have better information on the proper radial size for a 600 15 bias ply? I am to the point that any radial whitewall in the correct diameter that will fit the car I would be happy with.

 

I did find these in 205 70 15 and may just have to go with them. They are the same diameter but are 1.5 inches wider at the tread.


https://www.cokertire.com/tires/maxx...ll-radial.html

 

Discount tire has the size mentioned in WW's
https://www.discounttire.com/fitment...%20Wall&page=0

 

Didn't have time to search all the antique tires, but came across some close options. Good luck.
https://www.performanceplustire.com/...15:ty:Antique/