Tire Wear on Rainier ST

nickofosho · 02-28-2023, 09:08 AM

Hello all, I’ve got a tire question that may have been answered somewhere else on the forum, but I couldn’t find the info I was looking for so please bear with me if this is repetitive.

I’ve got Rainier ST tires on my 2020 Hideout, factory installed. I ran over something and had a slow leak and when I put on the spare I noticed how worn the tire was compared to the brand new spare. The tires have a little over 6K miles on them. I’ve included a photo below, which doesn’t make the wear look as bad as it actually is. But, does this wear seem excessive for 6K miles? Are these tires “China Bombs”? Thinking it is time to replace them. Any suggestions?

Thanks in advance for any help!

jsb5717 · 02-28-2023, 09:48 AM

Generally speaking, yes, those are considered China Bombs. Seems to me to be excessive wear but am curious about how you're using them.

Your 2020 28BHSWE has a GVWR of 9620lbs. What size and rating are the tires? Do you run them at their max PSI rating?

PS. It is helpful to go to UserCP/Edit Signature and create a signature with your truck and trailer info so answering questions is easier.

**JRTJH** · 02-28-2023, 10:36 AM

Wear on ONE tire when compared to a new tire isn't a reliable way to determine wear.... Compare the tire in question with the other three that have been exposed to similar conditions. That will tell you if the wear is isolated to that one tire or if it's the "normal wear conditions for all 4 that have travelled 6,000 miles...

As for the "center tread wear", sooner or later you're going to hear the words, "Your tires are overinflated".... While that could be true, remember that you need to run the same tire pressure on BOTH ends of the axle, so while it "could be over inflated" it also could be "set to match the weight on the other end of the axle"... Often times, one end will be carrying a refrigerator or a heavy pantry in a large, heavy slide and the other end of the same axle is carrying a LCD TV in an empty cabinet.... So, look at the "whole picture" not just wear on ONE tire compared to a new tire.....

CWtheMan · 02-28-2023, 11:10 AM

The worn tire may be in an early stage of tread separation.

The taller of the two same size and load range tires in the picture is very close to failure.

https://www.keystoneforums.com/forum...1&d=1677611683

nickofosho · 02-28-2023, 02:53 PM

Quote:

Originally Posted by jsb5717

Generally speaking, yes, those are considered China Bombs. Seems to me to be excessive wear but am curious about how you're using them.

Your 2020 28BHSWE has a GVWR of 9620lbs. What size and rating are the tires? Do you run them at their max PSI rating?

PS. It is helpful to go to UserCP/Edit Signature and create a signature with your truck and trailer info so answering questions is easier.

The tires are ST 225/75R15. I run them at max PSI per the sticker on the trailer (which always seemed high to me…). The trailer generally is about 80% to 90% it’s GVWR.

We are in California and they have seen a variety of conditions including 100+, sun 30s and some off road.

Thanks for the PS tip, I will do that.

nickofosho · 02-28-2023, 02:56 PM

Quote:

Originally Posted by JRTJH

Wear on ONE tire when compared to a new tire isn't a reliable way to determine wear.... Compare the tire in question with the other three that have been exposed to similar conditions. That will tell you if the wear is isolated to that one tire or if it's the "normal wear conditions for all 4 that have travelled 6,000 miles...

As for the "center tread wear", sooner or later you're going to hear the words, "Your tires are overinflated".... While that could be true, remember that you need to run the same tire pressure on BOTH ends of the axle, so while it "could be over inflated" it also could be "set to match the weight on the other end of the axle"... Often times, one end will be carrying a refrigerator or a heavy pantry in a large, heavy slide and the other end of the same axle is carrying a LCD TV in an empty cabinet.... So, look at the "whole picture" not just wear on ONE tire compared to a new tire.....

Sorry, should have stated this in original post. All of the tires have very similar wear compared to the one removed. I’m concerned about the whole set. But yes, good point that comparing 6K miles to 0 miles isn’t a great indicator.

The tires overall seem to have worn much quicker than I anticipated.

nickofosho · 02-28-2023, 02:57 PM

Quote:

Originally Posted by JRTJH

Wear on ONE tire when compared to a new tire isn't a reliable way to determine wear.... Compare the tire in question with the other three that have been exposed to similar conditions. That will tell you if the wear is isolated to that one tire or if it's the "normal wear conditions for all 4 that have travelled 6,000 miles...

As for the "center tread wear", sooner or later you're going to hear the words, "Your tires are overinflated".... While that could be true, remember that you need to run the same tire pressure on BOTH ends of the axle, so while it "could be over inflated" it also could be "set to match the weight on the other end of the axle"... Often times, one end will be carrying a refrigerator or a heavy pantry in a large, heavy slide and the other end of the same axle is carrying a LCD TV in an empty cabinet.... So, look at the "whole picture" not just wear on ONE tire compared to a new tire.....

Also, I noticed the same in the center of the tire. I run them all at the max PSI per the sticker on the trailer. Should I be running them lower?

nickofosho · 02-28-2023, 02:58 PM

Quote:

Originally Posted by CWtheMan

The worn tire may be in an early stage of tread separation.

The taller of the two same size and load range tires in the picture is very close to failure.

https://www.keystoneforums.com/forum...1&d=1677611683

Very interesting, thanks for sharing!

**sourdough** · 02-28-2023, 06:17 PM

IMO the Raniers are just another china bomb. Don't have the terrible history of the Trailer Kings....but enough. This trailer had Raniers on it from Keystone. I had Sailuns put on it before I ever saw or picked it up from the dealer - they just don't have a "pedigree" I wanted to trust.

nickofosho · 03-01-2023, 06:19 AM

Quote:

Originally Posted by sourdough

IMO the Raniers are just another china bomb. Don't have the terrible history of the Trailer Kings....but enough. This trailer had Raniers on it from Keystone. I had Sailuns put on it before I ever saw or picked it up from the dealer - they just don't have a "pedigree" I wanted to trust.

Thanks for the input. That seems like a smart choice. Guess it’s time to put some new tires on!

wiredgeorge · 03-01-2023, 07:25 AM

Quote:

Originally Posted by nickofosho

Thanks for the input. That seems like a smart choice. Guess it’s time to put some new tires on!

Sailun doesn't make 15" tires. Try Goodyear Endurance or Carlisle Radial HD Trail are both as superior tires and the Carlisle are considerably less expensive and what I use. Best price is to order online and take them to your favorite tire shop to be mounted. Some folks buy them at Discount Tire for the convenience. I suggest if you go to Discount Tire to have a link to the Walmart web page selling those tires as DT will price match.

nickofosho · 03-01-2023, 09:49 AM

Quote:

Originally Posted by wiredgeorge

Sailun doesn't make 15" tires. Try Goodyear Endurance or Carlisle Radial HD Trail are both as superior tires and the Carlisle are considerably less expensive and what I use. Best price is to order online and take them to your favorite tire shop to be mounted. Some folks buy them at Discount Tire for the convenience. I suggest if you go to Discount Tire to have a link to the Walmart web page selling those tires as DT will price match.

Thanks so much! The Carlisle are what I’m looking at.

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