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Old 10-24-2013, 09:07 AM   #11
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Originally Posted by herk7769 View Post
The max is "up to" 10 PSI over the "pressure required for the actual tire load" taken from the charts.

If the tire is already at its max load at its max sidewall pressure, no further increase in pressure is allowed and speed rating is then 65 MPH.
Herk by what you just said. If my load inflation by the GYC is 55 Lbs. act/tire load and I run them at 65 max PSI which my rims are rated for, I can run up to the speed of 75mph if I wanted to. Did I understand you correctly? I'm quite sure how that is breaking news from the tirerman, that has been published for over a year in there specks. They have said that before and it was discussed somewhere on this forum.
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Old 10-24-2013, 09:10 AM   #12
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Herk by what you just said. If my load inflation by the GYC is 55 Lbs. and I run them at 65 max PSI I can run up to the speed of 75mph if I wanted to. Did I understand you correctly?
Yes according to the bulletin from Goodyear/Tire Rack- so long as the maximum cold pressure of the tire and wheel are capable of 65 psi.
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Old 10-24-2013, 09:13 AM   #13
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Originally Posted by gljurczyk View Post
Herk by what you just said. If my load inflation by the GYC is 55 Lbs. act/tire load and I run them at 65 max PSI which my rims are rated for, I can run up to the speed of 75mph if I wanted to. Did I understand you correctly?
You're safe Glenn, that old FoMoCo won't run 75mph!
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Old 10-24-2013, 09:24 AM   #14
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Is there an easy way of finding what your rims are rated for, I can't imagine that say 14 inch tires that run at a recommended 50psi would not have a safety margin less than 50%.
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Old 10-24-2013, 09:24 AM   #15
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Originally Posted by OldCoot View Post
I think what Herk posted is pretty clear. If at max load, max cold pressure, max speed is 65, no ifs, buts or ?
I agree that what Herk posted is "clear". That doesn't mean that it's in agreement with the facts.

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Originally Posted by ependydad View Post
Yes according to the bulletin from Goodyear/Tire Rack- so long as the maximum cold pressure of the tire and wheel are capable of 65 psi.
No actually, that is NOT what the bulletin says. It says:
"Do not exceed the maximum pressure for the wheel."

No where in there does it say anything about Max cold pressure for the tire.
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Old 10-24-2013, 09:31 AM   #16
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Originally Posted by BarryD0706 View Post
I agree that what Herk posted is "clear". That doesn't mean that it's in agreement with the facts.



No actually, that is NOT what the bulletin says. It says:
"Do not exceed the maximum pressure for the wheel."

No where in there does it say anything about Max cold pressure for the tire.
Max pressure stamped on the sidewall is Max Cold Pressure.
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Old 10-24-2013, 09:31 AM   #17
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You're safe Glenn, that old FoMoCo won't run 75mph!
Thanks your right my Fix Or Repair Daily will not hit that speed. My point is that why wouldn't I keep and run at the rated CPR instead of the inflaton charts. That is why I do not. Also that is why it is better to move up to D rated instead of them boarder rated C that came with the trailer. As long as your rim can hold them and rated for that pressure. They had that out like I said over a year ago when I bought my tires. That is also listed on GY inflation chart. I guess this debate kept me busy for awhile atleast.
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Old 10-24-2013, 09:48 AM   #18
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Is there an easy way of finding what your rims are rated for, I can't imagine that say 14 inch tires that run at a recommended 50psi would not have a safety margin less than 50%.
Yes there is, It is by the spokes in your rim, I think that e trailer has a chart it shows. I know that 5 spoke is rated at 65 psi and I thought that 6 spoke is 80 do not quote me on that but it will show you different style rims compared to the psi of each. I think it was posted last week. Might have been Ependydad that posted that. I think I also found it at the rim manufacturer site on google.
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Old 10-24-2013, 09:59 AM   #19
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Originally Posted by OldCoot View Post
Max pressure stamped on the sidewall is Max Cold Pressure.
In this post: Correct Tire Pressure
Tireman9 himself says that while he thinks that's the case, he was going to setup a meeting with some industry folks to get a definitive answer.

I had thought that this "Breaking News" thread was to give the results of that meeting, but from what I see, all he's done is to reference the original bulletin which is still unclear on this point.

Note that in the post immediately preceding the one I referenced above, jadatis reports confirmation that it is ok to exceed "max cold" by 10psi (although I read what he referenced and don't see it myself).
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Old 10-25-2013, 11:11 AM   #20
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Originally Posted by ependydad View Post
Any chance you can track down/confirm this response from Maxxis?

any experience with taskmaster radial flyer trailer tires?

I am not real comfortable with replies from customer support people. Usually they are not engineers and have standard answers for standard questions.

In my communication with Tire Rack I find it interesting that so far they (TireRack) have not been able to get an official company reply to this +10psi = 75 mph question.
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