Question:
What is the diameter of a B78-13 tire
asked by: Beecher V
Helpful Expert Reply:
The B78-13 tire size, the modern equivalent of which is a 175/80-13, has a 24.1 inch diameter. This can vary slightly from one manufacturer to the next so you might see one that is 23.9 or 24.3. I have included a link to our handy tire size help article for you.
Karrier ST175/80R13 Radial Trailer Tire - Load Range D
