What Does 5.70 and 8 Mean On a 5.70-8 Trailer Tire

Question:

What does each number on the following tire size represent? 5.70 - 8

asked by: Ward S

Expert Reply:

In regards to a 5.70-8 tire, the 5.70 represents the width of the tire which is 5.7" wide and the 8 represents the diameter of the wheel the tire is designed to fit which is 8" diameter. If you are needing a replacement, the Kenda K353 Bias Trailer Tire is what I recommend and is offered in a load range B part # AM10010, load range c part # AM10012, and load range d part # AM10013.

Assuming you have clearance, there are a few other options for tire sizes that will fit an 8" diameter which I have attached a list of for you below.

expert reply by: Conner L

Bob

3/24/2025

I have a trailer tire that is 155/80 R 13. What size would work in inches? I need a rim also.

Jesse M.

3/24/2025

@Bob The 155/80R13 tires are about 22.8" in diameter and 6.1" wide. The closest thing we offer to this would be a 175/80-13 such as part # AM31994. This tire is about 24" in diameter and 7" wide so you would want to make sure you have enough fender clearance for a slightly larger tire. It comes on a 5 on 4-1/2" wheel.