Hi,I put a used set of LT 215 / 85 R16 BRIDGESTONES on my 1950 Canadian built 1300. I am using the original 16" wheels and had to install new radial tubes. I picked the 4 up and had them installed and balanced and they seem to work fine. The big problem was finding a modern radial truck tire that was that narrow . You may find it easier having the 15 " rims .good luck , Jeff