Tyre pressure and sway bars

[Taylex]

Hi everyone,

I am after some guidance on tyre pressures.

Do all 4 tyres run the same pressure?

I read a post saying 60psi fronts and 70psi rears, does that sound correct?

Also in the UK every caravan comes with an anti sway device. Our Jayco tows great and I assumed one wasn't required.

However I have seen people talking about them on here So, I was thinking it wouldn't hurt to add one on.

Any recommendations?

[travelingjw]

What type of equipment do you have. Are you talking about 4 tires on your tow vehicle or on your trailer. It would also be helpful if you provide the and the length of your trailer.

[Taylex]

Yes I guess that info would help
Jayco feather
The plate on the van says it's 2700kg with full propane tanks
Trailer is 32ft
I am after tyre pressures for the trailer.

[TWP723]

I'd say run all 4 tires at the same pressure on the sidewall. Running different PSI's on separate axles doesn't seem right to me, I've never heard of that. Do you know if they are D rated or E rated tires?

[Taylex]

From memory these new ones are D rated. We don't have good year endurance in the UK so I have replaced all 4 for brand new .
Garage have recommended ANTARES NT3000 apparently they are comercial tyres

[TWP723]

D rated are usually 65 psi and E rated are 80 psi. Is there a tire label on the trailer anywhere? Should have all the tire info and other specifics. White label maybe?

[Taylex]

I've had a look around but can't find a sticker with any tyre info.

[TWP723]

What exact model Jayco do you have? And is it UK only?

[Taylex]

Jay Feather
27bhb 2020
We bought it in the UK 4 months ago, the van had already been converted to 240v and used once or twice before we picked it up.
Since we have owned it we have been to Europe twice.

[TWP723]

ST205/75R14 D rated tires. 65 max psi. All 4 tires...same pressure.

[Jerry713]

Originally Posted by Taylex

Hi everyone,

I am after some guidance on tyre pressures.

Do all 4 tyres run the same pressure?

I read a post saying 60psi fronts and 70psi rears, does that sound correct?

Also in the UK every caravan comes with an anti sway device. Our Jayco tows great and I assumed one wasn't required.

However I have seen people talking about them on here So, I was thinking it wouldn't hurt to add one on.

Any recommendations?

32 feet is a lot of travel trailer to not use a WD hitch. If you have a one ton dually you're fine with out one but anything less there is plenty of room for error.

I have a friend who pulls his 32' Jayco with a light duty 3/4 ton Ram with the 5.7 Hemi without a WD hitch in high winds but his truck is squatted big time and he only travels about 55 mph with it. So it's doable you just have to know what you're doing and know you're limits.

[jeffmcpa]

With Mine, I go by the tire spec's on the sticker on my trailer (with the gvw rating and loading information) in my case load range D, Pressure 65 LBS.
The Pressure happens to match the max pressure on the tires I have on the trlr, but I am using it because the trailer MFG specified that, NOT because it is the max per the tire sidewall.

I am sure that others will have different opinions, which is fine, we all have to do what is best for us.

[jeffmcpa]

Taylex
You originally commented "in the UK every caravan comes with an anti sway device."

Another poster commented..."32 feet is a lot of travel trailer to not use a WD hitch"

Just wanted you to know that WD (Weight Distributing) Hitches, and not the same as an "Anti Sway" Device. Some WD hitches may come with anti-sway device included, but many do not.

You can find the differences and details on both with a search on this site. I just wanted to try to avoid possible confusion due to the mix of terms in the thread.

Best wishes

[Jerry713]

Originally Posted by jeffmcpa

Taylex
You originally commented "in the UK every caravan comes with an anti sway device."

Another poster commented..."32 feet is a lot of travel trailer to not use a WD hitch"

Just wanted you to know that WD (Weight Distributing) Hitches, and not the same as an "Anti Sway" Device. Some WD hitches may come with anti-sway device included, but many do not.

You can find the differences and details on both with a search on this site. I just wanted to try to avoid possible confusion due to the mix of terms in the thread.

Best wishes

True thanks for clarifying.

[jadatis]

On your traveltrailer(caravan) mostly also a VIN-plate, wich gives GVWR/MPVW and sometimes also GAWR/MPAW). And if made for european market, pinload between 1%!!! And 10% allowed.
For american market they place axles more to the back, because pinweight must be between 10% and 15%.

This influences the needed tyrepressure.

And howmany axles under TT

From tires this " pigheaded Dutch selfdeclared Tirepressure specialist" needs loadindex and speedcode and plyrating/loadrange, most likely
D-LOAD / 8PR with 65 or 69 psi reference-pressure.
If " for trailer use only" with speedcode N, look for that to.
Tyrespecifications are given on sidewall.

Give all that, and I wil put it in my made spreadsheet.

[jadatis]

Read back and found.
MPVW/GAWR 2700kg ( 5950lbs)
4 tyres so tandem-axle.
In Europe max 10% on towbar, would be 270kg, and I daubt if there is a car in Europe that is allowed that 270kg towbar weight.
120kg is already much.
So if you would use my spreadsheet, in English language setting, I use a standard 4% towbar weight, is 108kg( 238lbs).

Them max permissable axle weight would be nice too, sometimes more then half MPVehicleW.
So in your case fi 1500kg, and then minimum of tires by law 750kg= LI 98.

Now we only need tyre/tire-specifications.
Need next, given o sidewall of tyres.
1. Maximum load or loadindex.
2700kg/4=625kg+10%= 688kg is loadindex 95 minimal wise. Can also be done with normal car tyre or XL

2. Kind of tire to determine the reference-pressure. D-LOAD/8PR AT 65 or 69psi is often used in Europe, but can suprisingly also be XL normal car tyre fi 195/65R15XL 95Q.

3. Speedcode
if QRSTHV referencespeed is 160kmph/99mph, if N, 140kmph/87mph. And for those speeds the maximum load /loadindex is given.
So I substract 2 loadindex steps from N speedrated tyres, to give them same deflection as Q and higher speedrated, before filling in my made spreadsheet.

[Taylex]

That's great thanks for the info

[Taylex]

Wow this is some great info. Can I ask you avfee more questions.
I have a land rover discovery 3.0 diesel v6 with a tow weight for 3500kg.
My trailer is 2780kg on the vin sticker.
What should the pin weight be?

Also I would like to get an anti sway device if anyone has options. All then ones I can find are for European caravans.

[Jerry713]

Originally Posted by Taylex

Wow this is some great info. Can I ask you avfee more questions.
I have a land rover discovery 3.0 diesel v6 with a tow weight for 3500kg.
My trailer is 2780kg on the vin sticker.
What should the pin weight be?

Also I would like to get an anti sway device if anyone has options. All then ones I can find are for European caravans.

Pin weight or tongue weight should be minimum 10% of your trailer weight. So minimum about 280kg.

I think what you're referring to as anti-sway device we refer to as weight distribution hitch (WDH). For that vehicle or any vehicle that is close to it's max ratings I would recommend a quality WDH. The best one I've ever used is Weigh Safe. If you look up best weight distribution hitch you'll see ProPride (or Hensley they're both basically the same thing) are at the top of the list but they are north of $3500. Weigh Safe is right behind them (under $1000) and for good reason. It takes the guess work out of distributing the weight as it has a built in scale to accurately measure tongue weight and using the app it calculates the precise amount of distributed weight based on your tow vehicle and trailer.

[jadatis]

Anty sway bar in in Europe nothing more then 2 concave brake pads in the towbal conection, that give friction on the towball.

To be allowed to drive 100kmph(62mph) in Germany, you need a Tempo 100 Sticker, and one of the demands is anti sway bar and tyres not older then 6 years.

Weight distribution hiches are not used in Europe.
Towbal weigt 150 kg is much here, and I daubt if Taylex car made for the european market, has a towbar allowed 280 kg. Again, in Europe axles are more placed to the centre, and only between 1%!!!! and 10% is allowed on towbar.
Many users here are happy if they can get 3% on towbar.

I think you can buy antiswaybar conection to replace your conection without, google( or other search machine) is your friend in that.

Here a link
http:/Stabilisatorkoppelingen https:...ilisatoren.php
From a Dutch site, easy for me, searched antislinger koppeling, with pictures ans several brands, Alko for instance. Notice the handle to push down to tighten the brakepads to the ball.

And an English one
https://www.google.com/url?q=https:/...WW4OUae6tPK://