FYI: Last summer I bought some new tires for my 58 Shasta. It had the original 15 inch rims. It had some older 7.00 x15 bias ply tires. I found some comparable in size radial tires. They are the 205 90 R15. They are the E load rated Power King tires. The Cooper tire dealer said they have been good tires since they have been selling them. I ran them last summer and have been impressed with them. I like they are close to the same tire size as the originals.