ST or LT tires?

Maxxis are not made in China and seem to doing well according to what I've read in this forum.

According to Voltage, each axle is rated at 7,040 pounds and the tires are rated at 3520 (totaling 7040 per axle). The 3 axles and 6 tires give a total weight hauling capability of 21,120 pounds, which is 2,120 pounds over the 19,000 GVWR of the trailer and this doesn't count what's on the hitch. One might go so far as to say that airing up the tires to the 80 pounds max load rating listed on the sidewall is most likely over filling the tires, which also may cause a failure since the tires don't need to carry 21,120 pounds.

If the trailer has a pin weight of, say, 3500 pounds then the tires only need to hold up 15,500 or 2583 pounds per tire, which, again, does not need 80 pounds of air.

So it seems to me that Voltage has over built the trailer for hauling the given weight and that is commendable.

There is a lengthy article in Trailer Life, June 2013 page 50. It explains the difference between ST verses LT tires, and how they can have an effect on your trailers handling. ST tires contain chemical compounds to resist weather and ozone cracking. Your tandem or triple axle trailers put a tremendous amount of side load on the tires when turning, as ST tires have stiffer sidewalls that LT tires. Did you know that ST tires are designed to run at a max speed of 65 MPH? ( Unless Stated Otherwise) Plus higher speeds result a build up of heat in the tire, that have a direct impact on it's lifespan.
Different tire MFG recommend a different life expectancy from there tires. Carlisle states that one third of the tires strength is gone after 3 years, thus they recommend replacement of tires regardless of tread depth. Other tire MFG are in the range of 7 to 8 years. I for one go by the 6 year rule. The end of the article states, follow the RV, MFG guidelines as to your tire size and choice, LT or ST.

Here is the tire that I would put on it- http://www.gosailun.com/Tires/Sailun/All%20Position/335
These tires are for 110PSI rims.

You probably shouldn't use E-rated LT tires due to load ratings. If you obey the load ratings you're probably stuck with either E-rated ST tires, lousy tires IMO, or G-rated LT tires if the wheels are rated for the higher pressures. Or you can change to 17.5" wheels and tires. Ya pays yer money, ya takes yer cherce.

Wow..are you saying that your 19,000 lb. trailer came with ST tires? I guess they can get away with it because it has 3 axles and also some of the weight goes on your truck.

But,.... I still would not run any ST tires on a rig that heavy.

Stay away from China made tires and also from Goodyear Marathon. Most people replace their St tires with LT tires for better performance and life.

I just replaced my factory china bombs with some Maxxis LT tires a couple weeks ago. I'm expecting a much better tow.

Whatever you get, make sure they BALANCE them. Most rv manufacturers do not balance their trailer tires, which causes premature wear. this is what wore my china ones out so fast.