I have a 1994 Spartan Elite boat trailer. It has Loadstar A78x13ST original? tires on it, and I want to replace them. Since A78x13 is no longer made, what would be an equivalent size I could use? There isnt a lot of room between the fender and the tire, so I wouldnt want to go any larger in circumference or width.
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I just replaced my old trailer tires, date code 2002.The old ones were Nanco A78-13ST but right on the tire next to the size numbers it says Replace ST16580-13. I have verified that these were the correct original tire size for my trailer 1991 ShoreLandr B1715.I replaced with Nanco ST165/80D13 as stated on the old tire and can see that a 175 would not have probably fit as I already have tight clearances.My question is why does the old tire actually say replace with a 165 when every site I go to says the replacement is a 175?
comment by: Sean R - 3/3/2013
I could not say for sure. Could be because 165/80D13 can be hard to find. Could also be because Nanco tires run a little big anyway. I do know that we do not carry that size, so my gut says it is because it is a hard to find size. I do not know for sure.
The 175 size would be 10mm wider and 16mm taller. Patrick B - 3/28/2013