Trailer Tires

op wrote:
Should I worry about the 35 PSI maximum pressure and the 105S SL ratings?

A 35 psi P tire (passenger tire) doesn't have enough pressure to hold the tire to the wheel on your toy hauler as they side slip around corners or backing. The beads can become unseated.
Another down side of a P tire on trailers is fed regs say the tire capacity has to be derated by dividing capacity by 1.1.....example a P tire with 2375 lbs capacity now has 2159 lbs capacity. P tires work great on single axle and lighter weight tandem axle trailers
I keep P tires on one of my smaller utility trailer with 3500 lb axles but they carry a 51 psi rating.

Those Goodyear LT tires can last 8-10 years/30k-40k miles when stored and maintained properly.
I wouldn't down grade from a LT tire to any brand ST tire.

Thanks for the replies. I have a lot of research to do. Luckily, camping season in Utah is still a few months away.

I'd suggest go with a load range of D and always's make sure you have the proper PSI as stated on the tire . Kenda's are a great trailer tire.


https://www.pepboys.com/tires/trailer/225_75_15_trailer_tires/00799

After about 5 years, on my previous TT, I replaced the original tires with Carlisles. They were still on the camper when we sold it 3 years later.

This late last Summer we replaced the original tires (almost 3 years old) with Carlisles again. Since then, we've been from Central Indiana to Branson, Mo and then Kansas City, Mo. Another trip from Indiana to South Carolina over Christmas, not to mention, several local week-end trips last Fall.

So far, they are doing just fine. I'm not seeing any signs of tread wear or anything yet. They are the "new" Carlisles. The folks that installed them had to order them for the camper because they did not have any in stock. So I waited. That was OK. They gave me a price, and I agreed. When the tires came in, they told me the price was less than the original quote, because they were the "new" Carlisles"

So far, they have served very well. No complaints, and this IS my second camper installing Carlisles.

My experience has been positive. But then, I didn't have problems with 3 campers and the original tires either, they just aged out.

Reason we got new tires for the last camper, was because one tire had really uneven wear. Never did figure out why, except the tire was a cheaper made tire. I've been watching the Carlisle on that same spot, and after several thousand miles now, no signs of anything. Very happy with mine!

I will take a look at the Maxxis ST.

I would like to keep the stock 15" wheels. They are aluminum, in good shape, and I like the looks of them.

Thanks for the suggestions.......

No, I am not looking for a mud tread. My guess is they were put on at the factory for looks. Pretty stupid if you ask me. I'm also guessing that the rolling resistance on more of a highway or AT tread would be a lot less.

My thinking on the Wranglers was exactly what you posted. 2028 X 4 = 8,112. 1000 pounds over my trailer gross of 7100#. (which I never get anywhere close to by the way) With the Wranglers, the speed rating is in excess of 100 MPH. I have no desire or intention of going that fast with a trailer in tow. But the max speed rating of 75 MPH worries me.

Should I worry about the 35 PSI maximum pressure and the 105S SL ratings?

Thanks for the help......

Are you looking for more mud tires??

You mention a ST225/75-15 tire which are a highway tread.

Your LT235/75-15 C tires show a 1985 lb rating = 7940 lbs of capacity which is plenty of tire for 3500 lb axles and your trailer.

I use the Goodyear Wrangler HT in a LT215/75-15 D (65 psi) at 2085 lb capacity on one of my small car haulers with tandem 3500 lb axles. There tires are good for any speed I need. They have around 28k miles and are going on 6 years old so lots of trouble free service left.
The Goodyear Wrangler LT235/75-15 C at 1985 lbs would be another excellent replacement tire. Most all usa tire makers carry this size/load range.

I wouldn't replace a LT tire with any brand ST tire. Too big of a drop in reliability and long term service.

Others will have different opinions but here are my two choices:.

Maxxiss ST tires. Proven reliable. Period.
Some like the new Carlisle ST's but I had too many problems with their older style tires to give them any of my money.

Second choice; Replace wheels with 16" and go to a LT tire.

Avoid off brand Chinese junk tires you've never heard of and dont believe tire dealers who will claim "we've never had one come back". It's a lie they all tell to sell what they have.

So you'd suggest a trailer specific tire, meaning a switch to 225/75?

I've got a line on a set of Vangard STR II tires, in 225/75/15D. The speed rating is "L", which I believe is 75 MPH.

Good or no?

I would go with a LR D tire at a minimum. C is just too light.