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Old 05-11-2013, 04:49 PM   #61
Cougarfamily
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The June issue of Trailer Life came out this week with an article on tires starting on page 50, and a letter with a tire question sent to RV Clinic on page 87. They mentioned that the China bomb from China maybe an online conspiracy.

In the answer to the letter, it states that with ST tires, one can go upto 75 mph by just adding 10 pounds to the max pressure to deal with the heat.
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Old 05-11-2013, 07:13 PM   #62
CWtheMan
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Quote:
Originally Posted by Cougarfamily View Post
The June issue of Trailer Life came out this week with an article on tires starting on page 50, and a letter with a tire question sent to RV Clinic on page 87. They mentioned that the China bomb from China maybe an online conspiracy.

In the answer to the letter, it states that with ST tires, one can go upto 75 mph by just adding 10 pounds to the max pressure to deal with the heat.
Did they provide a reference?
Can they provide a reference that would satisfy safety concerns?
Are vehicle manufacturers recommending such a patch job?
Would the load have to be reduced to apply the excess pressure?
Making statements without valid reference or providing reference for the procedure to follow seems to be a violation of safety.

Tire manufacturer speed restrictions are normally tied to load restrictions. In other words, an ST tire rated for maximum load capacity at a specified pressure and speed would reach it's maximum limit at the top end of the speed restriction.

CW

p.s. IF the rims will suppoer the extra pressure, LT tires can also be increased by 10 psi. It's right in the DOT regulation. Tire and vehicle manufacturers do not choose to talk much about that. It promotes OVERLOADING!
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Old 05-11-2013, 08:31 PM   #63
diugo
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The "add 10psi for 75mph" reference can be found in a PSB issued by Goodyear about two years ago. A copy of it can be found here: http://www.tirerack.com/images/tires...plications.pdf

I disagree with the idea entirely. Speed kills. So does overinflation, in adverse conditions, especially at high speeds.
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Old 05-11-2013, 08:41 PM   #64
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I wish there was some objective testing of different brands to see what reality is. Otherwise all we have to go on is antidotal stories which is totally unreliable. My own unreliable information is that I've had Chinese tires on my last four rigs and probably put at least 100,000 miles total on them and had only one blowout in all that time. I have always run them at max pressure--that is what all the RV manufacturers have recommended. And I've always made sure they are not over loaded.
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