What size of current tire can I use on a 1958 220S Mercedes? It currently has 6.50 13s. Also, will I need tubes?
Tubeless tires were available in '58. If the rims are made for tubeless tires they will work. Try to find a tire in a 75 aspect ratio that is about the same width as your current tire. I’ll guess a 165/75/13 should be close.
This chart from www.tirerack.com should help
P175/75R/13 or P185/75R/13 will replace the old 6:50-13 rag tires…