Tires dillema

[wandererr]

So the trailer I'm going to build is going to be about (I'll overestimate just in case) 1500 dry. The rims currently are 4 bolt 12 inches. I looked at the tire capacity and the first question that I have is if the two tires need to add up to the expected trailer weight or does each one of the tires need to meet the expected

I'm considering going up in the rim size or getting for the 12 rims tires that have max weight capacity.... thoughts?

Btw, this will be mainly a road trailer.

 

[kmlacroix]

Each needs to be more than half the gross trailer weight. You do not need to go overboard. If the gross weight of trailer and cargo will exceed 2500lbs, then you will need to get a load range "E" 12" tire or move to a 13" tire and wheel.

 

[wandererr]

Any stability benefits from going to a bigger tire?

 

[kmlacroix]

Yes. With a larger diameter tire you get a better ride, less bouncing over road imperfections, less wear and heat on bearings. Also more ground clearance. From a 12 to a 13 the diameter difference is 3.5" to 4"

Here is a site that has lots of trailer tires. You can see sizes and capacities.

 

[highlandercj-7]

Yes the thicker side wall is smoother. Step up to at least the 13".

 

[rnArmy]

Generally, the largest rim size you can get in a four-bolt pattern is a 13"; usually they'll come with a 175/80/13" tire. WalMart will often sell them. It's a good bit taller than the usual 4.8x12" tire. It is a very common tire/rim size combo.