All steel 236/85/R16 LRF

Cummins12V98 wrote:
"Endurance hasn't been around long enough to have a Stellar Record!"

Sorry ZERO non road hazard issues in over 3.5 years on the market DOES get the STELLAR rating!

I assume just a matter of time.
Of course Sailun does has a few reports of issues. Still a good tire.

For the OP: whatever you decide, I recommend tires that carry the full GVWR. Virtually all OEM are marginal at best.

"Endurance hasn't been around long enough to have a Stellar Record!"

Sorry ZERO non road hazard issues in over 3.5 years on the market DOES get the STELLAR rating!

JIMNLIN wrote:

Explain why derating is not an option. and why is over tire a bad thing. I would rather be a bit over tired then close to the tire rating.

The last sentence in that reply answers your question.

This rv owner found out from actual experience what we talk about when a trailer is over tired.....

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Posted: 04/27/17 08:01am Link | Quote | Print | Notify Moderator
When it came time for me to replace our tires, I researched many different ways to go. I wound up purchasing 17.5" J rated medium duty truck tires and wheels. When all done and said, it was $5.00 per wheel and tire combo more than just replaceing the 16" tires. This tire and wheel combo is good for 6005 pounds each. Using the inflation chart to get the pressure for the load, I inflated to 80 psi which was good for 4500 pounds per tire. With the first tow with these tires to Kansas City, I have made this trip to the speedway several times before, I was down almost 2 mpg both ways. The tires were 20*-25* hotter than the truck, which I have never experienced before. I inflated them to the side wall pressure, 125 psi for max load, before our trip to Florida. Now the tires run 5*-10* cooler than the truck and my fuel mileage is back where it used to be. I have always run max pressure up until I installed these tires, with what I have experienced, I will continue to run what the side wall indicates.

Thanks for the reply . His solution was to air up, does not sound like he was unhappy after that. I have no way to compare. I haven't run a TPMS until last year, although I have ran it with two different fifth wheels ,same tire. Pretty much the same weight. I run my Sailuns at 100 psi now. Max is 110 psi. Both fifth wheels ran about the same temperature, and my mileage is the same.

I run the Sailun ST 235/85/16's, I don't need the 4400 lb. rating, but did want the little extra height. The ST 235/80/16 @ 4080 would of been okay. I have no idea what makes the Sailuns different in weight rating between the two, they appear to be constructed the same, I would guess just being a different size ?? Both 110 psi max inflation.

My whole point has been if he wants an F rated tire, he might as well go to a G rated ,and get the best tire . G is going to be easier to find, more selection etc. Will E work ,sure it will. Its his choice. He could run those Sailuns at around 90-95, and not have a problem. I'm running mine with 100, and no problems . His weight on the tires are not going to cause any issues .

goducks10 wrote:
Have you thought about adding a sub-frame under your 5er to increase height? 6" is a lot to be out of level. Seems like you'll still get some premature wear even with G or F's.

I have and still might do it. I drove my trailer on 2" blocks and it went from 6" difference to 2.5" difference. So I am going to get the tires and rims and then see how it looks/measures out.

Have you thought about adding a sub-frame under your 5er to increase height? 6" is a lot to be out of level. Seems like you'll still get some premature wear even with G or F's.

OP here......Wow.....I should have checked back sooner.

I will add a little bit of information here. Yes my 5'r came with load range "D" tires. Factory rims and tires are 6 lug wheels rated at 80psi and ST225/75R15 tires. My trailer currently rides out of level pretty bad. It is about 6" difference from front to back. I recently had a blowout on my rear tire and had to purchase a tire on the trip. I am going to be upgrading to a 16'' wheel and tire to gain height. If I go with the 235/85R16 I will gain around 1.75' of height. I have found wheels that will fit my trailer and are rated for 110psi. Did the tire blowout from too much weight being on the rear tires? Yes I am quite sure of it. Does a load range "E" tire add up to cover the max weight of my trailer? Yes it does. But why not go higher? I had no intentions of going to a load range "G" tire as some are suggesting, but......I am not against it. I really would like an all steel tire but I have not been able to find one in that size at load range "F". Also in my consideration is price. Why not buy an all steel higher load range tire for the same price as a Goodyear Endurance load range "E" tire. I am not a full timer but a frequent weekend warrior. You guys are way smarter at this than me and most of you have thousands and thousands miles more than me pulling a trailer. That is why I am here asking questions. Maybe I don't know what I am talking about or overthinking it. I am reading everyone's reply and have read almost every thread I could find on tires and heck...……..I still cant decide what to do. Thanks!!!

Explain why derating is not an option. and why is over tire a bad thing. I would rather be a bit over tired then close to the tire rating.

The last sentence in that reply answers your question.

This rv owner found out from actual experience what we talk about when a trailer is over tired.....

Senior Member

Joined: 10/22/2011

View Profile


Offline
Posted: 04/27/17 08:01am Link | Quote | Print | Notify Moderator
When it came time for me to replace our tires, I researched many different ways to go. I wound up purchasing 17.5" J rated medium duty truck tires and wheels. When all done and said, it was $5.00 per wheel and tire combo more than just replaceing the 16" tires. This tire and wheel combo is good for 6005 pounds each. Using the inflation chart to get the pressure for the load, I inflated to 80 psi which was good for 4500 pounds per tire. With the first tow with these tires to Kansas City, I have made this trip to the speedway several times before, I was down almost 2 mpg both ways. The tires were 20*-25* hotter than the truck, which I have never experienced before. I inflated them to the side wall pressure, 125 psi for max load, before our trip to Florida. Now the tires run 5*-10* cooler than the truck and my fuel mileage is back where it used to be. I have always run max pressure up until I installed these tires, with what I have experienced, I will continue to run what the side wall indicates.

time2roll wrote:

cummins2014 wrote:
Endurance the max air pressure is 80 psi. 3640 max weigh rating.

The weight chart shows Endurance at 110 psi and 4400 load.
https://www.goodyearrvtires.com/pdfs/rv_inflation.pdf

Yes Sailun shows same. Either is fine.

I don’t think thats correct , the specs on the Endurance says 3640 max weight , 80 psi max Inflation, if it was otherwise the specs would show the 4400 and 110 like it does the Sailun. I think the inflation chart is messed up , 110 psi in a E rated tire ,I don’t think so.

cummins2014 wrote: "I would rather be a bit over tired then close to the tire rating"

I agree, a BIT over tired, such as E-rated and 80 psi, which is more than enough tire for less than 10K on the trailer wheels. Running a heavy tire designed for 95-110 psi, at 80 psi, makes little sense, will run warmer, not roll as free, and cost more. IIRC, the OP's trailer came with D-rated tires, which are sufficient for the weight. To upgrade, a quality ST with an E rating at full sidewall of 80 psi is best choice, IMO.

Jerry

cummins2014 wrote:
Endurance the max air pressure is 80 psi. 3640 max weigh rating.

The weight chart shows Endurance at 110 psi and 4400 load.
https://www.goodyearrvtires.com/pdfs/rv_inflation.pdf

Yes Sailun shows same. Either is fine.