Tyre pressures on a Malibu PVC

[Vortexman]

Hi everyone
New to the forum and perhaps a noddy and common question as just wanting to make sure I have got the attached right. Picked up our new Malibu PVC motorhome last week and tyre pressures seemed high with firm ride and looking over inflated etc. The attached is from the user manual and looks helpful. The tyres fitted are the Michelin Agilis Camping 225/75 R16 CP116Q. If I assume van at max weight of 3500kg equally distributed at 1750kg per axle then the recommend pressure is 3 bar, ie 44psi. That is lower than I have been reading and other tyres in this table. Does it seem right and ok? Are these quite rigid walled tyres?

 

[Hagstrom]

I believe you are doing the right thing to question converters' and base vehicle manufacturers' recommendations for tyre pressures. There are forum threads galore on this subject which are worth reading. Just use the search facility and fill your boots!

 

[Wh05apk]

Last week I weighed mine, and as a result dropped the pressures from 70/60 to a recommended 57/44 and the ride is transformed. (currently running a few psi over, but will drop down before next trip)

I would recommend checking the weights then looking on tyresafe for their recommendation.

 

[Abgs]

Picked up our new Malibu PVC motorhome last week .........

Pictures please ! I am pondering one of these for my next purchase !

 

[Hagstrom]

I believe the Michelin Camping tyres have an extra sidewall ply to compensate for the van being at the higher end of its axle load ratings whilst in use and then sitting unused for long periods between trips. And so they are appaently stiffer in the side wall and maybe this is one reason why users report them being not very compliant.

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[MITHRANDIR]

Your tyres are notorious for harsh ride poor grip etc, worst tyre ever made for motorhomes IMV.

 

[Cidered]

Very harsh ride in my 2019 Fiat Ducato based la strada 5.4 too. We Have the Michelins. Is it worth dropping the pressure? If not which tyres are more compliant when it comes to replacement?

 

[camoyboy]

The recommended tyre pressures from Carthago for a 3500 Kg PVC Malibu on a standard FIAT chassis are 3.3 bar front and 3.75 bar rear with the tyre sizes you quote.

 

[MITHRANDIR]

The ones i have just had fitted to my van are michelin agillis crossclimate, like night and day, i had them on my previous van, an A class rapido, they transformed that as well, quiet, wear well, superb grip wet or dry, nice ride without feeling boaty, not the cheapest though
In the A class it was literally shaking itself apart with the agilis camping tyres, and bordering on dangerous in the wet, once i had changed to crossclimates they transformed it.

 

[TheMachMan]

Having spotted this thread thought I’d check mine. They are all 4.5 bar, which seems way over the recommendation as I have the same Michelin tyres as the OP.
There is a sticker on the door, which I’m guessing are the axle loads, though it doesn’t say which is rear or front.
The ride has always felt fine so don’t have any complaints, but if I drop the pressures will it have a negative affect on handling, noise and fuel economy?

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[Bobby-gg]

Don't assume your axle weights, get it on a weighbridge and get get your total, and axle weights.

Then check against the tyresafe recommendations

Motorhome Tyre Pressure Calculator | TyreSafe

Our motorhome tyre pressure calculator gives you the correct pressures for your motorhome. Check your tyres regularly for your safety.

www.tyresafe.org

 

[Guigsy]

Generally Michelin Camping tyres are recommended to run at 80psi, even on 3.5t vans. Mine was.

Within 1000 miles, I'd swapped to Continental VanCo 4Season. Continental publish a guide with recommended pressures. I can now run as low as 50psi. It's a considerably better ride. And it doesn't understeer and wheelspin on damp roundabouts like a 5 minute old baby deer.

 

[cyberyacht]

I'm planning on ditching the Michelin Agilis this winter. Torn between Conti Vanco All seasons or BF Goodrich All Terrain. Which to go for though?

 

[Simon Meadwell]

We have continentals on our A class and the ride is dreadful. Reduced the pressures and slightly better. A lot of people go for van tyres for a better ride.

 

[Guigsy]

We have continentals on our A class and the ride is dreadful. Reduced the pressures and slightly better. A lot of people go for van tyres for a better ride.

Which Continentals? The campers are nearly as bad as the Michelins.

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