Yet Another Tire and Wheel Question

Nankipoo · 02-02-2021, 06:23 PM

Tires look good on the 5'er we bought last fall. After having a blowout on the travel trailer we had with what I thought were good looking tires too, I'm planning on getting new tires before spring. The tires that are on it now are 235/85/16E, 1200/116P. On the sticker on the side of the camper, GVWR 13,000, GAWR 6000 each axle, 16x6 wheels, 80 PSI cold. Crawled under it and looked at wheels, they are Sendel 3580's. If I'm looking them up right they are rated for 100 PSI. Question is, I'm looking at getting the Sailun tires in the same size I have now. Would it be best to stay with the E rated or go up G rated and run at 100? Is the S637 tire the ones that are recommended in the Sailun tire?

https://simpletire.com/brands/sailun...&userZip=37501

**sourdough** · 02-02-2021, 06:50 PM

What did the back of the wheel say for psi/load rating? In that size, if I recall, the LRF is 95 psi and the LRG is 110 psi. Look at the wheels. At 13k gvw you COULD go with the LRF (depending on what your wheels say) and should be good.

Nankipoo · 02-02-2021, 07:36 PM

Quote:

Originally Posted by sourdough

What did the back of the wheel say for psi/load rating? In that size, if I recall, the LRF is 95 psi and the LRG is 110 psi. Look at the wheels. At 13k gvw you COULD go with the LRF (depending on what your wheels say) and should be good.

Went out there with a flashlight and couldn't find that. I will try to find it in the daylight tomorrow.

bobbecky · 02-02-2021, 08:22 PM

If the wheels are rated 100 psi, then get the Sailuns and pump them up to 100 psi and you will be good. They don’t have to be pressurized to 110 psi. And the Sailun S637 are the tires you will be looking for.

CWtheMan · 02-03-2021, 03:24 AM

Quote:

Originally Posted by Nankipoo

Tires look good on the 5'er we bought last fall. After having a blowout on the travel trailer we had with what I thought were good looking tires too, I'm planning on getting new tires before spring. The tires that are on it now are 235/85/16E, 1200/116P. On the sticker on the side of the camper, GVWR 13,000, GAWR 6000 each axle, 16x6 wheels, 80 PSI cold. Crawled under it and looked at wheels, they are Sendel 3580's. If I'm looking them up right they are rated for 100 PSI. Question is, I'm looking at getting the Sailun tires in the same size I have now. Would it be best to stay with the E rated or go up G rated and run at 100? Is the S637 tire the ones that are recommended in the Sailun tire?

https://simpletire.com/brands/sailun...&userZip=37501

According to specs that trailer's OE tire size was ST235/80R16 (LRE). The tires you described above with a load index 120/116 are LT235/85R16 (LRE), not even close to the trailer's minimum requirement. IMO you should stick with the OE tire size and go up a load range or two. That way your vehicle certification label would have valid information. Valve stems and wheels must have the ability to support the replacement tire's PSI rating.

Nankipoo · 02-03-2021, 05:29 AM

Quote:

Originally Posted by CWtheMan

According to specs that trailer's OE tire size was ST235/80R16 (LRE). The tires you described above with a load index 120/116 are LT235/85R16 (LRE), not even close to the trailer's minimum requirement. IMO you should stick with the OE tire size and go up a load range or two. That way your vehicle certification label would have valid information. Valve stems and wheels must have the ability to support the replacement tire's PSI rating.

Why would they put (LRE) on the sticker if they don't even meet the minimum requirements?

Drew Waller · 02-03-2021, 08:56 AM

Get the highest rated tire you can get in that brand. Pay the money now and save money on the next if anymore blowout. I’ve had 3 blowouts on my Raptor. That has averaged $5000.00 per failure.

bobbecky · 02-03-2021, 11:09 AM

Quote:

Originally Posted by CWtheMan

According to specs that trailer's OE tire size was ST235/80R16 (LRE). The tires you described above with a load index 120/116 are LT235/85R16 (LRE), not even close to the trailer's minimum requirement. IMO you should stick with the OE tire size and go up a load range or two. That way your vehicle certification label would have valid information. Valve stems and wheels must have the ability to support the replacement tire's PSI rating.

The Sailun S637 tires are ST tires in both the 80 and 85 series tires and are both G rated tires. The LT tires had to be put on by the previous owner who had issues with the E rated trailer tires.

Sarge2 · 02-03-2021, 12:03 PM

question... what's the difference between a "super cargo" ST205/75/14 in Sailun and just a ST205/75/14 ? Asking for a friend... Me

My bad... different brand tire... sorry..

Nankipoo · 02-03-2021, 03:55 PM

I can't find the Max PSI anywhere on the wheels. Going to look one more time before I have to take one off to see. If they will hold 100 PSI, will the G-rated be safe at 100PSI?

**sourdough** · 02-03-2021, 04:18 PM

If they will support 100psi they don't care what load range tire is on them. Just my personal thought but I think I would go with the LRF at 95psi fully inflated vs the LRG and deflate to 100psi. I would rather run at full inflation on an ST tire and I think the LRF will take care of your trailer.

Nankipoo · 02-03-2021, 07:34 PM

Quote:

Originally Posted by sourdough

If they will support 100psi they don't care what load range tire is on them. Just my personal thought but I think I would go with the LRF at 95psi fully inflated vs the LRG and deflate to 100psi. I would rather run at full inflation on an ST tire and I think the LRF will take care of your trailer.

What tire in an LRF do you recommend?

**sourdough** · 02-04-2021, 08:04 AM

Personally I like Sailuns and had them put on this trailer before I took possession.

Nankipoo · 02-04-2021, 08:16 AM

Quote:

Originally Posted by sourdough

Personally I like Sailuns and had them put on this trailer before I took possession.

Do they come in LRF?

CWtheMan · 02-04-2021, 08:17 AM

Quote:

Originally Posted by Nankipoo

Why would they put (LRE) on the sticker if they don't even meet the minimum requirements?

LRE is not a part of a tires size. Its a load range that applies to various sizes. According to specs I found for your trailer its Original Equipment tires were ST235/80R16 LRE. Those tires depending on brand can be rated at 3420#, 3500# and 3520# at 80 PSI. Form that the minimum acceptable tire size for your trailer is one that will equal the load capacity of the OE tires. From your description of the tires you want to change-out, they are LT235/85R16 LRE. They provide 3042# of load capacity @ 80 PSI. At least 400# below minimum requirements.

NOTE: Load capacities for ST & LT tires are determined by the load range letter system.

CWtheMan · 02-04-2021, 08:21 AM

Quote:

Originally Posted by Nankipoo

Do they come in LRF?

NO! Load range "G" only and all are steel cased.

Nankipoo · 02-04-2021, 06:39 PM

A TO3BM is the closest wheel I can find on the Sendel site. If this is my wheel in an 8 lug 16x6, the highest pressure is 94 PSI. The Sailun tires don't come in an LRF. Since they can't be run at lower pressures, I guess the Sailuns are out. Now I'm back to square one on what tires to buy. This crap is complicated.

Here is a pic of my wheel.

**sourdough** · 02-04-2021, 06:49 PM

What is the OE size tire listed on the sticker on the front left corner of the tailer? Carlisle makes the CSL 16 if it fits whatever that size is.

Nankipoo · 02-04-2021, 07:02 PM

Quote:

Originally Posted by sourdough

what is the oe size tire listed on the sticker on the front left corner of the tailer? Carlisle makes the csl 16 if it fits whatever that size is.

st235/80r/16e

**sourdough** · 02-04-2021, 07:15 PM

Why wouldn't you go back in the recommended size and go up a load range?

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