Tires: Bias ply conversion to radial, simple answer, xls

Question
8.90x15 bias ply to radial????  What would the correct size be?

Answer
Chris,

Here's my web page on the subject:

http://www.barrystiretech.com/vintagetireexchange.html

And here's all the results:

http://www.barrystiretech.com/vintagetirespecs.xls

And as you see, it's not a simple answer, but P215/75R15 is pretty close, but you may not want to go there.