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Old 10-18-2016, 09:36 PM   #1
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Another tire question

I know this has probably been asked and I have read a lot of threads on tire pressures. But here goes so be nice!

On my cedar creek 36B4 the tire placard says I should be running 80psi for my
Goodyear G614 RST LT235/85R/16G, since I got it in 2012 my dealer told me to run my tires at the max psi of 110. Which I have been doing. However, it seems that might be too much. All our stuff keeps bouncing around and one of our wall boards keeps popping out. So maybe I should be running the lower psi for a less harsh ride?
Thoughts from the experts would be greatly appreciated.
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Old 10-19-2016, 06:33 AM   #2
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I would run them at the max PSI that is shown on the tire wall. This pressure should be set when the tire is cold.
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Old 10-19-2016, 06:42 AM   #3
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Underinflated tires cause blowouts (or whatever the real name is). Inflate to max pressure.
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Old 10-19-2016, 07:23 AM   #4
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This sounds like an unintended consequence of a major tire upgrade. The harder tires likely transfer more jolts to the camper.

I'd run max pressure (maybe a little less- like 100psi) but would also add shocks to the camper to ease the road impacts from being transferred so harshly.
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Old 10-19-2016, 07:31 AM   #5
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Agree with what the other folks have said and think the addition of shocks on the larger trailers is a great idea
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Old 10-19-2016, 10:26 AM   #6
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Agree with what the other folks have said and think the addition of shocks on the larger trailers is a great idea
Be aware that the addition of shocks will make the trailer bounce more when walking around inside.
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Old 10-19-2016, 10:36 AM   #7
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Be aware that the addition of shocks will make the trailer bounce more when walking around inside.


Why?
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Old 10-19-2016, 10:40 AM   #8
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Be aware that the addition of shocks will make the trailer bounce more when walking around inside.
Not for me it didn't - I found no difference before and after.
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Old 10-19-2016, 10:41 AM   #9
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Quote:
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Underinflated tires cause blowouts (or whatever the real name is). Inflate to max pressure.
Check the manufacturer's psi load requirement. Do you know your trailer weight? They say you can drop down to the load requirement, but myself I disagree no matter what they say, I run at the stamp CP PSI. I agree underinflated tires cause the major problem.. PS: by the way if your sticker says 80 PSI for that exact tire your should be okay. The big problem is when people buy new tires, THEN THE DILEMMAS.
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Old 10-19-2016, 10:54 AM   #10
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Be aware that the addition of shocks will make the trailer bounce more when walking around inside.
And where do you get this information? Shocks neither add nor subtract to trailer bounce when the trailer is not moving. Voice of experience!
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Old 10-19-2016, 02:35 PM   #11
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I read this same type of thing before and the solution was....to have those tires balanced.

I know its a big debate whether you should or shouldn't but this is not your question.

The other persons solution was to have them balanced and that solved their problem. Its a pretty cheap solution as well. Less than the installation of shocks. The worse that happens is nothing.
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Old 10-20-2016, 07:35 AM   #12
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OK, so the the 614s are 14 ply with a 110 inflation pressure. OEM tires are 10 ply with Max inflation of 80 psi. That's the difference. Now, trailer tires should allways be inflated to the max pressure for the tire, otherwise heats builds causing tire failure. As for shocks, they don't affect bounce while parked, how could they? If anything they would help as that's what they are designed to do. At any rate I have shocks, equa flex equalizers and 14 ply tires as well. The tires were added last and I can tell no difference in things getting moved around. I will say shocks helped the most with ride quality. No more endless bounce. And yes Balance Tires.
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Old 10-20-2016, 08:02 AM   #13
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Back to the OPs question, Keep the tires at the designed pressure JMHO
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Old 10-20-2016, 10:03 AM   #14
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Can you define "designed pressure"?
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Old 10-20-2016, 12:29 PM   #15
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for trailer tires the max pressure on the sidewall is designed pressure (my term not the tire company)
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Old 10-20-2016, 12:51 PM   #16
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Be aware that the addition of shocks will make the trailer bounce more when walking around inside.
This is literally the opposite of what shocks do.
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Old 10-20-2016, 12:54 PM   #17
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for trailer tires the max pressure on the sidewall is designed pressure (my term not the tire company)


Understood, thanks.
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Old 10-20-2016, 02:34 PM   #18
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The sticker and the tires match. So the 80 psi would be what FR recommends. See my dilemma? Most everyone says Max psi, but manufacturer says other wise... 30 psi is a big difference. Anyone have a # I could call and ask FR?
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Old 10-20-2016, 03:27 PM   #19
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Anyone have a # I could call and ask FR?
Should be in here:
https://dealers.forestriverinc.com/D...nformation.pdf
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Old 10-20-2016, 04:37 PM   #20
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The sizes maybe the same, but the plies are more on the 614s. 14ply vs 10 ply. 14 ply tires in a 235 take 110 psi...10 ply tires in a 235 take 80 psi.
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