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Old 04-02-2018, 03:56 PM   #1
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Tire pressure question?

I just replaced my tires with a 10 ply tire max pressure is 80 lbs. My original were 8 ply. On my 5th wheel the label on tire pressure says 60 lbs. Which directions do I follow?
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Old 04-03-2018, 07:55 AM   #2
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Follow the pressure listed on the sidewall of the tire.
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Old 04-03-2018, 08:11 AM   #3
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There are MANY opinions on this subject.

Many say to just pump it up and use the MAX pressure listed on the tire.

I tend to follow the tire manufacturers recommendations of adjusting the pressure for the amount of load on the tire.

You didn't mention the brand but most tire manufacturers have a chart with guidelines of recommended pressures for a given load.
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Old 04-03-2018, 08:29 AM   #4
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Iím getting 2 different opinions!! I will need to continue research! Big difference between 60 and 80 lbs.
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Old 04-03-2018, 09:12 AM   #5
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Something to consider is the label in the rig is for the tires supplied. If you are running different ST tires the Mfgs say air to sidewall pressure.
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Old 04-03-2018, 09:16 AM   #6
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Air? Air in tires is over rated. Lowest possible pressure should give you the handling and ride you need. Soft and cushy. This is for you. Lowering Kit - $19.95 : KaleCoAuto.com, Your home for the rare, unusual, and hard to find auto parts.
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Old 04-03-2018, 09:32 AM   #7
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Quote:
Originally Posted by vmax View Post
Air? Air in tires is over rated. Lowest possible pressure should give you the handling and ride you need. Soft and cushy. This is for you. Lowering Kit - $19.95 : KaleCoAuto.com, Your home for the rare, unusual, and hard to find auto parts.


(Sigh.) Why be snotty? The OP didnít ask anything about a cushy ride.

Itís a legit question- the sticker on the camper was issued by federal regulation by the manufacturer.

The tires are stamped by their own regulations.

Both are official and we have had tire experts proclaim that each should be used.

Have you ever considered just avoiding tire pressure posts? They seem to get you riled up.
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Old 04-03-2018, 09:54 AM   #8
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(Sigh.) Why be snotty? The OP didn’t ask anything about a cushy ride.

It’s a legit question- the sticker on the camper was issued by federal regulation by the manufacturer.

The tires are stamped by their own regulations.

Both are official and we have had tire experts proclaim that each should be used.

Have you ever considered just avoiding tire pressure posts? They seem to get you riled up.
Take it easy I'm trying to hit that 16,xxx post mark like you.
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Old 04-03-2018, 10:05 AM   #9
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Quote:
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Air? Air in tires is over rated. Lowest possible pressure should give you the handling and ride you need. Soft and cushy. This is for you. Lowering Kit - $19.95 : KaleCoAuto.com, Your home for the rare, unusual, and hard to find auto parts.
My tires seem to prefer the 8d size.
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Old 04-03-2018, 10:08 AM   #10
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Originally Posted by 5picker View Post
I tend to follow the tire manufacturers recommendations of adjusting the pressure for the amount of load on the tire.

You didn't mention the brand but most tire manufacturers have a chart with guidelines of recommended pressures for a given load.
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Old 04-03-2018, 10:28 AM   #11
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I trust the tire markings over the trailer markings.

The trailer manufacturer has no idea what tires you are replacing the originals with. Their markings are based on the trailer with original tires.

As long as the tire is sufficient to handle the load of the trailer, the tire manufacture has taken into consideration the trailer that sits on the tire.

As far as changing loads go, as long as they are within the rating of the tire, tires automatically adjust according to the load, putting more or less footprint on the ground based upon the load.
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Old 04-03-2018, 11:13 AM   #12
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Originally Posted by OswegoLion View Post
I just replaced my tires with a 10 ply tire max pressure is 80 lbs. My original were 8 ply. On my 5th wheel the label on tire pressure says 60 lbs. Which directions do I follow?


If you bought Maxxis tires, follow the chart on this link:
http://international.maxxis.com/trai...nflation-chart
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Old 04-03-2018, 11:41 AM   #13
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Response from a tire design engineer to the posts in this thread.

=============
- Suggest that people read THIS thread
as it asked the same question.


- Pressure on the tire sidewall is the minimum pressure needed to support the load number molded on the tire sidewall. The GAWR on the TT certification lable is the important number that should not be exceeded.


- For all intents and purposes all tire companies have the same information in their Load & Inflation tables.

- Lowest possible pressure will result in shortest tire life.

- If you load the TT to the LR-E tire spec you will be overloading the axles which is not safe.

====
It is clear that many have not read THIS thread.
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