All 4 new Goodyear Endurance - Sidewall Failures

I have put man,many miles on several sets of Goodyear Endurance tires and some of them have had sidewall indentations. They are harmless and never caused me any issues. When I noticed them I looked into it.
Read the part about sidewall indentations:
https://www.discounttire.com/learn/sidewall-inspection#:~:text=SIDEWALL INDENTATIONS,-Picture a balloon&text=This is essentially what a,the rest of the sidewall.
Worked at Kelly tire company...the sidewall indention are where the rubber ply are joined together in the building process
 
Worked at Kelly tire company...the sidewall indention are where the rubber ply are joined together in the building process
Totally understand how the indentations are where they are joined together. But wouldn't it only be two right near each other? Vs. 4 to 6 on each tire? (I am no expert on this so just me asking... none of my previous radials had these or anything like this on my car hauler or previous travel trailer)

The concern I have more than the indentations as those I understand, is the outward bulges near the rim I have on 3 of my replacement tires already with only 300 miles. If its just cosmetic, no harm no foul, just has me nervous with how they look.
 
Totally understand how the indentations are where they are joined together. But wouldn't it only be two right near each other? Vs. 4 to 6 on each tire? (I am no expert on this so just me asking... none of my previous radials had these or anything like this on my car hauler or previous travel trailer)

The concern I have more than the indentations as those I understand, is the outward bulges near the rim I have on 3 of my replacement tires already with only 300 miles. If its just cosmetic, no harm no foul, just has me nervous with how they look.
I left the tire company in 1985, I recall only one place on the sidewall. We did not build radial trailer tires, and maybe it has several ply splices on sidewall on today's construction. That does seem to be an extreme
 
We’ve had great success with the Endurance on our 303rls . i recently put our third set on and we get about 35,000 miles per set.

I will say that on our first set, I had 15 inch wheels and had difficulty getting them to maintain their PSI. They always seem to lose a few pounds just sitting in the driveway

But since switching to 16 inch wheels 2 years ago they have never lost pressure and they have held up on the road

We travel very light, and carry very little water in the holding tank
 
The guys at Discount Tire told me that the rubber casing of the Endurance tires are made segments in a mold that joins the segments together. Discount says this is actually a good feature for trailer tires in that most all Endurance tire failures will not result in a piece of rubber that acts like a whip and does damage to the trailer fenders and undersides. The segmented casing does, however, not look as smooth and pretty as does a tire that is made in a continuous mold.
 
The guys at Discount Tire told me that the rubber casing of the Endurance tires are made segments in a mold that joins the segments together. Discount says this is actually a good feature for trailer tires in that most all Endurance tire failures will not result in a piece of rubber that acts like a whip and does damage to the trailer fenders and undersides. The segmented casing does, however, not look as smooth and pretty as does a tire that is made in a continuous mold.
I worked at Kelly Tire company for 15 years in the curing room. When a tire is built, the plies are wrapped around continuously on a drum to make one ply. Additional plies put together on top of each other. The plies wrapped around the tire bead. And the tread is put on top of the plies.
The tired is then put into a mold, was 2 pieces in my day, a top and bottom. Which closed on the green tire to form one piece mold. Then the tire is cured with steam and pressure.
If what you're saying that the mold is in four sections, cannot see where that would make it better. And definitely cannot see the "green" tire in four sections, as opposed to being built in one piece..

Just my two cents
 
The guy at Discount was implying that the mold has many segments (maybe 8 to 10?). He said that if the casing starts to come apart, those smaller segment connections will fail and not leave longer strips of casing to whip at the trailer.
 
The guy at Discount was implying that the mold has many segments (maybe 8 to 10?). He said that if the casing starts to come apart, those smaller segment connections will fail and not leave longer strips of casing to whip at the trailer
 
The un- cured tire is built in layers to become one piece before it goes into a mold. The tire then goes into the mold. Does not make a difference if the mold is 2 pieces or several pieces After the tire is cured, the mold opens up and the tire comes out of mold ready to be used

A mold that is two pieces or several has nothing to do with making the tire better. Most likely, a segmented mold is easier to handle and do repairs on it

It would be like baking a cake
 
The un- cured tire is built in layers to become one piece before it goes into a mold. The tire then goes into the mold. Does not make a difference if the mold is 2 pieces or several pieces After the tire is cured, the mold opens up and the tire comes out of mold ready to be used

A mold that is two pieces or several has nothing to do with making the tire better. Most likely, a segmented mold is easier to handle and do repairs on it

It would be like baking a cake
Maybe a better example would be a waffle iron
 
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