tire size conversion?

My trailer has A78-13ST tires, what is the standard size for those? Also is there a chart or something I could use???

Re: tire size conversion?

Try this chart http://www.tirerack.com/tires/tiretech/45_conversionchart.html

According to it, you need a 165-13

Re: tire size conversion?

I found a site with A78-13ST and B78-13ST , Which is the better of the 2, or will they both do okay?

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