Goodyear Endurance ST Tires

**backtrack2015** · 08-01-2018, 09:19 AM

Originally Posted by Brother_Bluto

Measured over the weekend. At 4in clearance above the tires, and 4in of clearance between the tires. No signs of rubbing on the underside.

Great! Thank you for measuring for me. I'm glad they haven't rubbed at all. I went to the storage unit and measured mine as well (stock 225/75R15). It looked like about 5.25" clearance above the tires and 6.5" clearance between them (stock). I'm only posting this info because it might help someone else later.

**Jimbuck** · 09-17-2018, 12:12 AM

We have a 2600rb and am looking towards upgrading my tires to Endurance

My question is:
the unit comes with 205/75 r15 which they max at “D” rating.

Would like to a higher rating of E but those only come in 225/75 r15

Any idea if those are too big or is E rated even warranted?

Side question talking with my Ford service person he used LT tires instead of trailer tires. Is there a possible issue there?

**WhittleBurner** · 09-17-2018, 08:47 AM

The ST tires have more belts in the sidewalls and are a lot stronger sidewalls than the LT tires. Stand behind a dual axle trailer when it's being backed up and you will swear that the tires are going to come off the rims from the way they twist so bad. That's the reason for ST tires to be able to withstand the twisting that happens. A single axle trailer wouldn't have that problem I believe but for multiple axle trailers it is needed. As far as going up in size you would need to measure the distance between the top of the tire to the bottom of the trailer. I believe the distance needed is 4 &1/2 "s but not positive. You would then have to find out how much bigger diameter the tire you want to use is and if that would leave you room for them. If they wouldn't check Rob's posts about 2" spacers that could be installed pretty easily.

**MidwestCamper** · 09-17-2018, 04:46 PM

Originally Posted by Jimbuck

We have a 2600rb and am looking towards upgrading my tires to Endurance

My question is:
the unit comes with 205/75 r15 which they max at “D” rating.

Would like to a higher rating of E but those only come in 225/75 r15

Any idea if those are too big or is E rated even warranted?

Side question talking with my Ford service person he used LT tires instead of trailer tires. Is there a possible issue there?

Jimbuck,

I upgraded from a ST20575R15 to the Endurance ST22575R15 tires and moved from D rated to E rated. I raised my rig with one inch spring blocks to allow for the increased diameter of the tires plus to help with the tire contact I noticed with the original Westlake tires with a right side sagging spring issue. I like the E rated tires since they are not running at the maximum capacity of the tire where I run the same 65psi as the D rated tires. Except each of the E rated tires have around 400 additional lbs of support at the same pressure. I believe the Endurance tires also ride better as well.

**Jimbuck** · 09-17-2018, 09:49 PM

Originally Posted by MidwestCamper

Jimbuck,

I upgraded from a ST20575R15 to the Endurance ST22575R15 tires and moved from D rated to E rated. I raised my rig with one inch spring blocks to allow for the increased diameter of the tires plus to help with the tire contact I noticed with the original Westlake tires with a right side sagging spring issue. I like the E rated tires since they are not running at the maximum capacity of the tire where I run the same 65psi as the D rated tires. Except each of the E rated tires have around 400 additional lbs of support at the same pressure. I believe the Endurance tires also ride better as well.

Thanks for the valuable info.

**RobertS377** · 11-06-2018, 03:29 PM

I had 4 GY Endurance installed on our 303 today after a Westlake failure we had yesterday. If you’re interested i posted the incident under the Survey for Westlake Failures

I put the two tires side-by-side and put my body weight of 210lb on each, as best I could. The GY didn’t really budge but the Westlake went down easliy, and quite a bit to my surprise. I’d estimate it to be around 2+ inches of give.

While not a scientific test by any means, it was more than enough to help me feel better about the expense.

Safe travels all

**Jimbuck** · 11-06-2018, 06:20 PM

Originally Posted by RobertS377

I had 4 GY Endurance installed on our 303 today after a Westlake failure we had yesterday. If you’re interested i posted the incident under the Survey for Westlake Failures

I put the two tires side-by-side and put my body weight of 210lb on each, as best I could. The GY didn’t really budge but the Westlake went down easliy, and quite a bit to my surprise. I’d estimate it to be around 2+ inches of give.

While not a scientific test by any means, it was more than enough to help me feel better about the expense.

Safe travels all

Scientific enough, and a comfortable feeling you are better protected. It’s a good thing

**Bamaman** · 11-06-2018, 09:07 PM

I too have seen the Westlake tires on my Reflection 323BHS off the rim. And I compared them side by side with the new Bridgestone Duravis R250 E rated ribbed tires purchased at Costco for about $200 each. They are commonly mounted on F450 and F550 trucks with utility beds and often small cranes--used by utility companies. The Costco tire manager says he's seen ribbed tires wear incredibly--as long as 125K miles--and he's never seen a failure with that tire. And as a ribbed tire, it's not something you'd put on your tow vehicle, but rather a special use tire.

Although the Westlake was rated for heavier carrying weights, the tread and the sidewalls of the Bridgestones were so much thicker. Sidewalls are over 1 inch thick. And there is over 15 pounds weight difference in the two tires.

There are millions and millions of tires sold every year going on boat trailers, RV's utility trailers, horse trailers, stock trailers. Goodyear finally made a smart move bringing out the Endurance tires 2 years ago--the only North American made ST tires. Now, they need to scrap the Marathons made in China as they're probably the most troublesome tire on the retail market. But my point is that the NHTSA has turned their heads on the safety of the American public by not holding all ST tires to higher quality. We're talking life and death here, with little retired men driving 55' long trucks/trailers weighing over 20K pounds with crap tires that fail too often.

**WhittleBurner** · 11-07-2018, 10:33 AM

Originally Posted by Bamaman

I too have seen the Westlake tires on my Reflection 323BHS off the rim. And I compared them side by side with the new Bridgestone Duravis R250 E rated ribbed tires purchased at Costco for about $200 each. They are commonly mounted on F450 and F550 trucks with utility beds and often small cranes--used by utility companies. The Costco tire manager says he's seen ribbed tires wear incredibly--as long as 125K miles--and he's never seen a failure with that tire. And as a ribbed tire, it's not something you'd put on your tow vehicle, but rather a special use tire.

Although the Westlake was rated for heavier carrying weights, the tread and the sidewalls of the Bridgestones were so much thicker. Sidewalls are over 1 inch thick. And there is over 15 pounds weight difference in the two tires.

There are millions and millions of tires sold every year going on boat trailers, RV's utility trailers, horse trailers, stock trailers. Goodyear finally made a smart move bringing out the Endurance tires 2 years ago--the only North American made ST tires. Now, they need to scrap the Marathons made in China as they're probably the most troublesome tire on the retail market. But my point is that the NHTSA has turned their heads on the safety of the American public by not holding all ST tires to higher quality. We're talking life and death here, with little retired men driving 55' long trucks/trailers weighing over 20K pounds with crap tires that fail too often.

I believe you were comparing a E-rated tire against a G -Rated tire and there is no comparison. At the 2017 IND. rally I compared the G-rated Westlake tire to the GoodYear G-rated tire and you couldn't tell the difference. In weight or strength of sidewall.

**Bamaman** · 11-07-2018, 10:19 PM

I was comparing my E rated Bridgestone Duravis R250's to the Westlake ST tire with 400 more pounds rating. You just would not believe how much thicker and stiffer the Bridgestones were versus the Westlake tire weighing 19 pounds less. Michelin also has a ribbed E rated tire that is very comparable but slightly more expensive. I'm not talking about G rated tires that need to be on heavier fifth wheels and toyhaulers than my Reflection fifth wheel.

I'm just saying the NHTSA has ignored the poor quality of Chinese tires, even though they are mounted on very heavy, long trailers being driven often by people that are not the most experienced drivers. It might not be that way if every person that shredded a tire made a safety claim with the NHTSA. It's just a wonder more people are not killed in RV accidents with tire failures. This is serious business.