camper tire pressures

[sgrizzle]

I have a Keystone Laredo (29 BHS, w/slide)

tires say 65 max PSI...do I put the max in or a few less? When I bought it, I noticed it had 50 psi in them. I currently have 58 psi in them.

We are getting ready to head to Yellowstone next week and I want to be sure I have the right PSI in them.

Thanks!

[Doug33]

I was following the cold tire pressure rating of 50 PSI on the sticker located on the side of the trailer. I guess I should check the tire itself.

I have an tire inflator compressor, and it is supposed to supply up to 100 PSI, but it takes quite a while to get a tire to go from 45 PSI to 50 PSI. I can't imagine trying to get them up to 65 PSI!

With my last TT, I kept the tires at 50 PSI cold for almost 8 years with no problems.

[Farm_Camp]

Yah. One thing I didn't remember to check at the dealership when I picked up my new camper last month was the tire pressure. Got it home from our very first outing and decided I'd better check. Not one tire was at 60 much less 65 - as per the sticker. (This was straight from the factory no less - I had ordered mine and picked it up about 5 days after it was finished being built)

So my lessons learned: Check before every trip, don't assume...

[Nvr2loud]

W.E.BGood wrote:

Nvr2loud wrote:
My tires have a max rating of 35 psi

Does that seem low?

They are Goodyear marathon trailer tires and I was surprised to find such a low pressure rating

What kind of TT do you have and what is the trailer's recommended inflation (per tag or manual)?

The rating plate in the side of the trailer is sun faded but the trailer is an r-vision trail cruiser 30QBSS

[W_E_BGood]

Nvr2loud wrote:
My tires have a max rating of 35 psi

Does that seem low?

They are Goodyear marathon trailer tires and I was surprised to find such a low pressure rating

What kind of TT do you have and what is the trailer's recommended inflation (per tag or manual)?

[Nvr2loud]

My tires have a max rating of 35 psi

Does that seem low?

They are Goodyear marathon trailer tires and I was surprised to find such a low pressure rating

[DiskDoctr]

sgrizzle wrote:
Thanks for all of your comments. We just got back from our trip to Yellowstone (2,500 miles!!). I can't believe the difference in towing from the two week-end trips we had before (with the tires at 50 psi and our cross-country trip to Yellowstone (with the tires at 65 psi). WOW! I never would have thought that would have made such a difference! Not as much sway, much more control. I was amazed.

I know, you probably think I'm a little dense. But I really did not expect that!

Great news! Towed trailers of any type benefit greatly from stiff sidewalls. The tires themselves, their condition, load ratings, and inflation pressures make a drastic difference.

Underinflation or things like running car tires on trailers cause trailer wagging. It's not the same as vehicle tires, which often have a range of inflation for various conditions.

Many confuse the two, but the proof as they say 'is in the pudding' 😉

[W_E_BGood]

My recent experience:
In April, in preparation for a 1,500 mile round trip over 4 travel days I aired all 4 tires on my '11 Keystone Outback 250RS to what the label says...65 lbs., rechecked the morning before we left with gauge and the gauge on the air compressor. Temps were in the upper 40's.

On the way back from Arkansas 7 days later, driving in lower 90 degree temps on the interstate at 58-62 MPH, my TST507 TPMS alerted me to an "overpressure" on one tire. Stopped and checked, and it was at 75 lbs...right where I had set the overpressure alert on the TST.

From now on I'll take anticipated temperature differences much more into consideration.

[sgrizzle]

Thanks for all of your comments. We just got back from our trip to Yellowstone (2,500 miles!!). I can't believe the difference in towing from the two week-end trips we had before (with the tires at 50 psi and our cross-country trip to Yellowstone (with the tires at 65 psi). WOW! I never would have thought that would have made such a difference! Not as much sway, much more control. I was amazed.

I know, you probably think I'm a little dense. But I really did not expect that!

[Dick_B]

We get a tire pressure question virtually every week and it's the same question only with a different tire pressure.
You could search this Forum for previous posts OR load it up to the cold pressure rating and drive on; which is what I do.

[DiskDoctr]

Absolutely right, follow the max cold pressure on the sidewall of the tire.

Don't trust a sticker on the side of the trailer, it doesn't have any idea what tires you have or what operating pressure they were designed to use.

If you are running >50 psi, make sure your valve stems are either metal or have a metal tube (inside the rubber stem). If they are all rubber, they are likely standard stems, only good for 50-60 psi. VERY COMMON error, even by tire shops 😉 They can bleed down over time, leading to possible catastrophic tire failure.

[YnotTurbo]

I run max pressure. My tires have 110 PSI on them and that is what they get. Check your pressures when tire is cold. I do it in the morning.

[wmoses]

ktmrfs wrote:
....if not most ST (trailer) tire mfg recomend running at the max inflation pressure regardless of load. That is the way they are designed.

Others go by tire load vs. pressure charts. I don't, I just run them at max pressure, they still wear fine and even and last 25-30K miles.

Agreed. I run mine at max rated sidewall pressure regardless of load (although I am close to rated load) -- maybe a couple pounds over (52-53 psi) and have no issues with my Chinese GY Marathon ST tires.

[campgrammie]

GLad you asked this question. We have the same trailer 2011 and my husband was questioning this also!!!

[sgrizzle]

Thanks guys! I just went back and put them all at 65 PSI.

[FastEagle]

sgrizzle wrote:
I have a Keystone Laredo (29 BHS, w/slide)

tires say 65 max PSI...do I put the max in or a few less? When I bought it, I noticed it had 50 psi in them. I currently have 58 psi in them.

We are getting ready to head to Yellowstone next week and I want to be sure I have the right PSI in them.

Thanks!

Below is a reference to one of my tire blogs. It may provide you with some information new to you.

Click Here.



FastEagle