/fyi

[Delaine and Lindy]

As I posted before, removed the Sailuns and replaced them with the Goodyear G614. G614 inflated to 110 lbs. After the G614's warmed up the tire pressure was about 124 lbs to 126 lbs. At 70 miles per hour, I nomally run 68 mph, which is the speed I like. I have in the past ran 75+ on the interstate, have found that 68 is the sweet spot. The 2022 GMC Denali 3500hd did not have in sag, the Montana was about 3" to 4" in the front, little high, I can lower the hitch 2"+, however I like the bed clearance.

Happy trails.

[Montana Man]

What's your point?

[Carl n Susan]

Originally Posted by Delaine and Lindy

.... After the G614's warmed up the tire pressure was about 124 lbs to 126 lbs....

Isn't that pretty much the same PSI as the Sailuns that scared you off them?

[mlh]

Good. Sounds like what has been reported here for years.
Lynwood

[DutchmenSport]

No matter what tire you install on any vehicle, they all worm up and the pressure increases when they are in motion.

I've had Hercules tires on my Montana for 3 years now and keep them at 100 PSI cold. This gives wiggle room when they heat up. 100 psi is easy to remember and that's just me.

We all live different, but I consciously never travel faster than 60 mph when towing. That doesn't mean, in some circumstances I'll push it up to 70, but those are rare and extreme times. 60 is a comfortable speed, it gives very good control of the tow vehicle and trailer in tow, and I never have to fight traffic, weaving in and out of lanes and such. I stick in the right lane and let everything pass me.

Once you've had a tire on your camper suddenly blow out, I think youi'll be slowing down too.

[bshgto]

Just finished 1500 mile trip . Noticed many many 5th wheels passing me and hanging out in the left lane doing 70 or better. They are arguing with the tailgaters and causing them to weave in and out of lanes to get around them. This is not safe at all but you know the younger crowd they just haven`t felt any pain yet but they will.
On this trip 2 road lizards in my lane, big ones to. Was able to hit the shoulder to miss them. Saw one tailgater in the left lane loose it and crossed in front of me at a distance then on to the trees noticed both front air bags went off as we went by so he hit something solid. My point is was able to react to conditions because of a slower speed. Look at a time "speed-time savings chart" really isn`t worth it. But some are always trying to prove something about themselves.

[PSFORD99]

Originally Posted by DutchmenSport

No matter what tire you install on any vehicle, they all worm up and the pressure increases when they are in motion.

I've had Hercules tires on my Montana for 3 years now and keep them at 100 PSI cold. This gives wiggle room when they heat up. 100 psi is easy to remember and that's just me.

We all live different, but I consciously never travel faster than 60 mph when towing. That doesn't mean, in some circumstances I'll push it up to 70, but those are rare and extreme times. 60 is a comfortable speed, it gives very good control of the tow vehicle and trailer in tow, and I never have to fight traffic, weaving in and out of lanes and such. I stick in the right lane and let everything pass me.

Once you've had a tire on your camper suddenly blow out, I think youi'll be slowing down too.

And with those G614's a blowout could happen at any moment. !!!

[PSFORD99]

Originally Posted by Carl n Susan

Isn't that pretty much the same PSI as the Sailuns that scared you off them?

Thats pretty much what my Sailuns run , I run mine at 100 psi, they heat up to about 118-120 running 65 .

[DQDick]

None of this changes that the tires are supposed to do that and you should inflate them to the recommended pressure. If you really want to be concerned, check the temperature of the tread area when you stop.

[RickyRobert]

While this subject has dominated just about every RV Users Forum, it never hurts to remind every RV'r that tire manufactures post their pressure/load charts on their websites. This information is critical to protect the side wall integrity from the very first rotation (cold temperature) through the very last at the tires' maximum speed rating. (Unless you have a dragging break, bad bearings or axle issue, the tires are manufactured to account for the increased temperature from road friction. BTW, I sincerely hope that every RV'r places the back of their hand on every axle's grease cap at every stop along the way. If it "burns", as opposed to being warm, you have a problem.) Going below the cold pressure for your weight, or above the speed rating for your few minutes of early arrival, puts not only you and your loved ones at great risk, but places those driving anywhere near you in jeopardy. On the G614s, there is 200 lbs per tire difference between 100 psi and 110 psi - that's 800 lbs difference for the 4 tires! ( https://www.goodyearrvtires.com/pdfs/rv_inflation.pdf ) On the Sailun S637s, there is 220 lbs per tire difference between 100 psi and 110 psi - that's 880 lbs difference for the 4 tires! ( https://fifthwheelst.com/documents/C...T-Modified.pdf ) Know the weight of your loaded RV and its axle weights is prominent on every RV Forum for this very reason. It only takes a few minutes and some very simple keyword searches for all of us to familiarize ourselves with the essentials of RV safety. If your home state/province does not require a special driver's license or endorsement for the weight of your unit, I'd still recommend that you search out the training guide that they use for those that do. Some very valuable information can be found within. Here's a good example - https://www.icbc.com/driver-licensin...full-guide.pdf

[mlh]

You can get a inferred temperature gage at Harbor Freight for $25 to check the temperature of the thread and wheels and bearings and anything else within a hundred feet.
Lynwood

[Delaine and Lindy]

Originally Posted by PSFORD99

Thats pretty much what my Sailuns run , I run mine at 100 psi, they tire pressure up to about 118-120 running 65 .

No, pressure build up is normal all tires increase from 110 up, 10% or more. The Sailuns I have seen many photo's, with massive failure. I just don't want Chinese made tires. Period.

I have never ever had an issue with Goodyear tires made in America. Both my Mobile Suites, had Goodyear G614, or G114 which were 17.5 tires.

Goodyear had at one time Chinese made tires, I forget the name, they were a disaster.

Those who like the Sailuns, that is your choice. I don't have NO faith in Sailuns. |

Happy trails.

[PSFORD99]

Originally Posted by Delaine and Lindy

No, pressure build up is normal all tires increase from 110 up, 10% or more. The Sailuns I have seen many photo's, with massive failure. I just don't want Chinese made tires. Period.

I have never ever had an issue with Goodyear tires made in America. Both my Mobile Suites, had Goodyear G614, or G114 which were 17.5 tires.

Goodyear had at one time Chinese made tires, I forget the name, they were a disaster.

Those who like the Sailuns, that is your choice. I don't have NO faith in Sailuns. |

Happy trails.

I think you misunderstood what I said . I run my Sailun ST 235/85/16's @ 100 psi cold . Running 65mph they hea up to a pressure of 118-120 psi . Yes at least 10% usually more . My Sailuns are rated for 4400 @ 110 psi ,running them @ 100 psi gives me 4080 lbs , plenty adequate for my GVWR of 15,500 .

I realized the Goodyear G614's had increased in price ,but wow $425- 525

For those that are interested in a new fifth wheel tire Hankook , reputable truck tires , have introduced a new RV tire not long ago the Vantra H31 , in either G rated 235/80/16 rated for 4080 @ 110 psi or the 235/85/16 rated for 4400 @ 110 ps. My next choice if Sailun does not get their act together . Price I am seeing is around $250 ea .

[hoffmann13.5]

What tire to get? I'm looking to replace my tires as well. I love the internet for info...I hate the internet for info... I'm going to upgrade from 235/85/16E rating to G. That requires purchasing the higher rated wheels too. I have had the Hankook car tires with excellent results but not trailer tires. I looked around locally but no one carries them or they are stuck in the supply chain. I don't know anyone that has them. Anyone on the forum?
The threads for tires are mind numbing to the point of information fatique, Sailuns vs Goodyear, China vs Vietnam vs U$A etc. It's hard to make an "informed"decision. Goodyears cost big bucks but are easier to find if you need replacements on a trip, Sailuns seem less prevalent but also less expensive. I feel like I'm going nuts!

[R.S.O'Donnell]

Originally Posted by bshgto

Just finished 1500 mile trip . Noticed many many 5th wheels passing me and hanging out in the left lane doing 70 or better. They are arguing with the tailgaters and causing them to weave in and out of lanes to get around them. This is not safe at all but you know the younger crowd they just haven`t felt any pain yet but they will.
On this trip 2 road lizards in my lane, big ones to. Was able to hit the shoulder to miss them. Saw one tailgater in the left lane loose it and crossed in front of me at a distance then on to the trees noticed both front air bags went off as we went by so he hit something solid. My point is was able to react to conditions because of a slower speed. Look at a time "speed-time savings chart" really isn`t worth it. But some are always trying to prove something about themselves.

We think alike.....

My days of proving anything to anybody are long gone. My absolute max speed towing is 65 and many times not over 60.

Here is one that was a very memorable experience.

We spent all of last winter in Quartzite. On our way up 95 headed to Walmart in Parker (shopping so just the truck) we had a 5er of some make blow by and I pulled out behind him. Thought I'd catch up and get a better look at his rig. I ran 70 for a bit but eventually decided it was going to take a lot more than that to catch him so I gave up.

[432bartman]

Originally Posted by R.S.O'Donnell

We think alike.....

My days of proving anything to anybody are long gone. My absolute max speed towing is 65 and many times not over 60.

Here is one that was a very memorable experience.

We spent all of last winter in Quartzite. On our way up 95 headed to Walmart in Parker (shopping so just the truck) we had a 5er of some make blow by and I pulled out behind him. Thought I'd catch up and get a better look at his rig. I ran 70 for a bit but eventually decided it was going to take a lot more than that to catch him so I gave up.

Same here on the tow speeds. My max is 65.

[DutchmenSport]

I guess I'm an old fart. Well.... I AM a 6 time grandpa! My speed is 60 and I stay in the right lane. When I'm not towing ....well????, that's another story!

[Mikendebbie]

Sometimes I push the envelope to 63…but at 65 mph I can start to see the curvature of the earth on the horizon so I back it off to 63.

[mlh]

I guess I’ll haft to be odd man out I drive the speed limit or a little above. I think safe instead of holding up traffic and make someone else try to get around me.
Lynwood

[twindman]

I used to go 62 because I heard it was the optimal torque for the money. however, last summer I figured out my Silverado doesn't shift into 6th gear until around 67, so I may bump up a bit.

As to tires, if the rig weighs under around 14000 loaded, you can use Michelin LTX tires. I think weight limit is 3000 each (subtract 2500 from load for hitch). I have used these for years with no problems. I think I get around 45K to 60K miles on them. The ARE expensive tho - I think now about $300 each.