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Old 10-26-2015, 08:54 AM   #113
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Originally Posted by jcanavera View Post
Problem for me is that there is no local outlet for Maxxis tires in the metro St. Louis area. I got these from a dealer about 140 miles southwest of us. My neighbor was working at the time in that area so it was easy for him to pick them up for me. I wasn't up for a 280 mile trip and then that lingering concern that the other two tires on the rear axle may be on their way to a similar fate. Once you lose confidence in a product, using it again is difficult. Especially with the fact that I was extremely lucky in catching these prior to a failure on the road.

Jack
Well even if trying to get the dealer to take responsibility. You should still have filed a complaint with NHTSA.

All the complaints in the world posted on an RV forum will never result in a recall or forced improvement in tire quality or improved fitment requirements.
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Old 10-26-2015, 09:10 AM   #114
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Originally Posted by Tireman9 View Post
Well even if trying to get the dealer to take responsibility. You should still have filed a complaint with NHTSA.

All the complaints in the world posted on an RV forum will never result in a recall or forced improvement in tire quality or improved fitment requirements.

Point well taken. In retrospect I probably should have but I really wasn't aware of that avenue at the time of the failure. Bottom line, folks selling me bad products no longer get my business any more. In some cases I think there is more power in making others aware of the issues and making them think twice about about their options when having to replace their ST tires.

Just looking at the number of tire threads and those going to LT's are making ripples. Airstream is a prime example of a company who obviously is hearing the call. You now have options, you now have models that come with LT's. There are 5th wheels being made that come with LT's. Things are changing and sometimes the power of social media can exert change.

As you are aware this is just not an Airstream issue. If you look at other RV forums you will find threads related to the ST tire issue.

Jack
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Old 10-26-2015, 09:11 AM   #115
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Well my current LT225 X 75R 16" Michelin's have a 2680 lb load capacity at 80 psi. At max load that gives me 15%.
snip
Consider the ST225 X 75 R 15" Maxxis E rated tires that these replaced had a 2830 lb. load capacity. At the time when I put on the Maxxis tires, I thought that the additional load capacity would address the issue of the stresses that my heavy Classic presented. The D rated Marathons that came with the trailer had a 2540 load limit at 65 PSI on 225 X 75R 15" D rating.
snip
All of this really makes me believe that over time, ST tires aren't really up to the task of a trailer in my weight class. That's why I made the jump to LT's.

Jack
Jack, your numbers provide a great example of part of the reason people have problems with ST type tires and better luck with LT.

Given that a tire's load capacity is a function of its air volume and pressure with durability affected by speed of operation I think you may be able to understand that the smaller ST tire with its over-stated load capacity is more prone to failure.
Maybe if speed limits were still 55 mph ST tires would be able to deliver acceptable durability but almost no one is willing to tow at 50 with only occasional runs up to 55.

People seem to forget that the load capacity for ST tires still use the same formula developed in the '60's while today's Passenger and LT tires follow 21st century formula and regulatory testing which is much more stringent.

I doubt that people change their driving habits if/when they change tire type so we shouldn't be surprised when we see a tire with a more realistic load capacity claim and higher speed capability delivers better durability.

IMO the formula and regulations will never improve unless the industry is forced to do so by the regulators and the regulators will never be able to go against the RV industry and low cost tire makers unless they have lots of data (complaints) to back them up but the RV owners as a group just seem to prefer complaining around the campfire, or on an RV forum rather than taking the 10 minutes it takes to file a complaint with NHTSA.
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Old 10-26-2015, 09:37 AM   #116
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Originally Posted by Tireman9 View Post
Jack, your numbers provide a great example of part of the reason people have problems with ST type tires and better luck with LT.

Given that a tire's load capacity is a function of its air volume and pressure with durability affected by speed of operation I think you may be able to understand that the smaller ST tire with its over-stated load capacity is more prone to failure.
Maybe if speed limits were still 55 mph ST tires would be able to deliver acceptable durability but almost no one is willing to tow at 50 with only occasional runs up to 55.

People seem to forget that the load capacity for ST tires still use the same formula developed in the '60's while today's Passenger and LT tires follow 21st century formula and regulatory testing which is much more stringent.

I doubt that people change their driving habits if/when they change tire type so we shouldn't be surprised when we see a tire with a more realistic load capacity claim and higher speed capability delivers better durability.

IMO the formula and regulations will never improve unless the industry is forced to do so by the regulators and the regulators will never be able to go against the RV industry and low cost tire makers unless they have lots of data (complaints) to back them up but the RV owners as a group just seem to prefer complaining around the campfire, or on an RV forum rather than taking the 10 minutes it takes to file a complaint with NHTSA.

Thank you well said. Without reading your post I am like many, I did not know about how to register my complaint. Thanks again for your input and your blog.


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Old 10-26-2015, 09:42 AM   #117
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15" rim vs. 16" rim ?

Here's the link to the site. https://www-odi.nhtsa.dot.gov/ivoq/Complaint.cfm

But understand the industry is stacked against us. From my own experience with a road hazard warranty on a claim, the dealer will use every trick in the book to throw the blame on you. I picked up a nail on my car tire and the tire deflated quickly. I got off the road quickly and got the spare on. Dealer confirmed that I had a puncture that was just outside of the tread. Not repairable due to the location. Hazard warranty claim denied due to debris inside the tire indicating the tire was rolling while flat. I noted that I was rolling when the tire suddenly deflated and yes it was rolled on as I was getting to the shoulder of the road. I protested to the manager and he made an "exception" and allowed the adjustment for road hazard damage. So much for tire forensics and my confidence in the industry to root out tire defects.

Most of us lack the proof or the facilities to prove the weight of our vehicles, tire pressures, and speed that our tires were at when the failure occurred. Without the forensics which are hard to provide, simply asking for an allowance from the dealer is like pulling teeth.

Jack
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Old 10-26-2015, 12:38 PM   #118
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After I bought 16" wheels, tires, Dill TPMS, and Centramatic balancers, I realized a Firestone TransForce HT LT 235/75R15 Load Range E 10-ply tire was available and in stock at the local Southern Tire Mart. I wonder if that same tire is available in a 225/75R15 or if the 235/75R15's would fit. I could have save about $800 to buy tires only or saved $400 to not buy 16" wheels and kept my 15" wheels which I sold for $200. Also, the 15" tires were about $40 less each- $160-
Did I screw up?
Maybe-


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Old 10-26-2015, 02:50 PM   #119
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Originally Posted by Tireman9 View Post
If you are running LT type tires and know that the rated load capacity of the current size LT tires equals or exceeds the load capacity of the original ST type tires then you should be good to go.
Thanks for the response Tireman9! Yes, my current LT tires have a higher load capacity. Best Wishes!
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Old 10-26-2015, 03:06 PM   #120
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Originally Posted by m.hony View Post
After I bought 16" wheels, tires, Dill TPMS, and Centramatic balancers, I realized a Firestone TransForce HT LT 235/75R15 Load Range E 10-ply tire was available and in stock at the local Southern Tire Mart. I wonder if that same tire is available in a 225/75R15 or if the 235/75R15's would fit. I could have save about $800 to buy tires only or saved $400 to not buy 16" wheels and kept my 15" wheels which I sold for $200. Also, the 15" tires were about $40 less each- $160-
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The only Transforce HT tires I can find in the 235/75R15 are Load Range C. Are you sure they were E?
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Old 10-26-2015, 04:13 PM   #121
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If that is so, then I did the right thing.
Maybe I knew it once upon a time but forgot-
I can't remember anything till the end of my nose-


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Old 10-26-2015, 06:49 PM   #122
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Originally Posted by Tireman9 View Post
Jack, your numbers provide a great example of part of the reason people have problems with ST type tires and better luck with LT.

Given that a tire's load capacity is a function of its air volume and pressure with durability affected by speed of operation I think you may be able to understand that the smaller ST tire with its over-stated load capacity is more prone to failure.
Maybe if speed limits were still 55 mph ST tires would be able to deliver acceptable durability but almost no one is willing to tow at 50 with only occasional runs up to 55.

People seem to forget that the load capacity for ST tires still use the same formula developed in the '60's while today's Passenger and LT tires follow 21st century formula and regulatory testing which is much more stringent.

I doubt that people change their driving habits if/when they change tire type so we shouldn't be surprised when we see a tire with a more realistic load capacity claim and higher speed capability delivers better durability.

IMO the formula and regulations will never improve unless the industry is forced to do so by the regulators and the regulators will never be able to go against the RV industry and low cost tire makers unless they have lots of data (complaints) to back them up but the RV owners as a group just seem to prefer complaining around the campfire, or on an RV forum rather than taking the 10 minutes it takes to file a complaint with NHTSA.
As I read more of these statements about some aspect of our trailers: tires, electrical, plumbing, corrosion prevention.., I realize that we paid with current dollars for a 1960s trailer. Nothing has changed but the price and our unrealistic expectations.
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Old 10-27-2015, 07:12 AM   #123
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Originally Posted by m.hony View Post
After I bought 16" wheels, tires, Dill TPMS, and Centramatic balancers, I realized a Firestone TransForce HT LT 235/75R15 Load Range E 10-ply tire was available and in stock at the local Southern Tire Mart. I wonder if that same tire is available in a 225/75R15 or if the 235/75R15's would fit. I could have save about $800 to buy tires only or saved $400 to not buy 16" wheels and kept my 15" wheels which I sold for $200. Also, the 15" tires were about $40 less each- $160-
Did I screw up?
Maybe-


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I can't find the tires you mention; all of them are lower ply rating. Are you drop dead sure that you have 10 ply E rating?
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Old 10-27-2015, 08:31 AM   #124
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Here are some 15" Yokohama's with 12 ply ratings.

http://global.yokohamatire.net/produ...rucktires.html


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Old 10-27-2015, 08:35 AM   #125
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If I am understanding the description correctly, that tire requires an inner tube.
The description never mentions load rating, speed rating, or weight carrying capacity.


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Old 10-27-2015, 09:37 AM   #126
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Yea I guess they are tube type...

I used these tires for my trailer.

http://www.yokohamatruck.com/commerc...s/detail/y742s


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