Tyre pressure

[Tinker2]

Hi anyone running Michelin Agilis Cross climates? 215/70 R15 tyres what pressure are you putting in? 3685 ton MH.

 

[Ingwe]

I’ve got these fitted to our 2012 Bailey 620 and I’m running the fronts at 65psi and the rears at 79psi. They replaced the Michelin Agilis Camper fitted when we bought the van in 2016. They’re markedly more quiet and so far have performed pretty well in the wet and dry but have yet to try them in ice/snow.

 

[wolfie2]

2013 Bessacarr 3500kg...... 60 front 65 rear. When getting a puncture repaired the fitter said max pressure for this tyre/size is 65. (It is on the tyre wall)

 

[Lenny HB]

I’ve got these fitted to our 2012 Bailey 620 and I’m running the fronts at 65psi and the rears at 79psi. They replaced the Michelin Agilis Camper fitted when we bought the van in 2016. They’re markedly more quiet and so far have performed pretty well in the wet and dry but have yet to try them in ice/snow.

For a non CP tyre I think 79 is far too high.

 

[Landy Andy]

On my 15’s I’m running 50 front 60 rear.

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[Ingwe]

For a non CP tyre I think 79 is far too high.

It is what the Michelin technical chap told our garage when we ordered the tyres.

 

[Lenny HB]

It is what the Michelin technical chap told our garage when we ordered the tyres.

If its a Motorhome Michelin always seem to quote 79 regardless of axle weight.
I run Toyo winter tyres fronts at 56 psi axle load 1930 kg, rear 69 psi axle load 2300 kg.

 

[Ingwe]

For a non CP tyre I think 79 is far too high.

I think, from Michelin’s data sheet, they consider that it is a CP tyre. I attach this.
But you’re right that Michelin almost always say to run the rears at 79 or even 80psi. I don’t profess to be an expert; I rely on the garage and other experts.

 

[Two on Tour]

If its a Motorhome Michelin always seem to quote 79 regardless of axle weight.
I run Toyo winter tyres fronts at 56 psi axle load 1930 kg, rear 69 psi axle load 2300 kg.

But are your tyres the same width and diameter as the OP's Lenny ?

 

[DDJC]

Hi anyone running Michelin Agilis Cross climates? 215/70 R15 tyres what pressure are you putting in? 3685 ton MH.

60 front 72 rear. I emailed Michelin and that is what they said to use. We are 3500kg

Have to say that if I was going to up-plate to 3685 (max I can go to is 3850kg) I would uprate tyres to 225/70/R15. I will be going to 225 when I next need to get new boots.

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[Bobby-gg]

Check with your axle weights here

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

 

[Lenny HB]

I think, from Michelin’s data sheet, they consider that it is a CP tyre. I attach this.
But you’re right that Michelin almost always say to run the rears at 79 or even 80psi. I don’t profess to be an expert; I rely on the garage and other experts.

That chart is for a Cross Climate CP no mention of CP's on the original post.

 

[Howard B]

I am running 16” tyres and run them at 60 front and 65 rear.

 

[Tinker2]

Thanks everyone, going to try 79 rear 65 front and see how it feels.

 

[MichaelT]

Thanks everyone, going to try 79 rear 65 front and see how it feels.

I would go to 72 rear 62 front, thats what I run my 4.5t on Agiois CP tyres

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[DDJC]

Something Michelin also said was that the cold tyre pressure on the sidewalls was the max cold pressure at the max speed rating. The Cross Climates come in two speeds. S and R. Maximum S speed is 112 mph and R is 106 mph.

Since (most!!) motorhomes run considerably slower, the tyre pressure on the sidewalls can be exceeded. This is why Michelin can give the advice to put in a higher pressure than that is printed on the tyre. For the rear axle, on my bus, they suggested, a bit more than I am comfortable putting in, so I am going about 72-74 rear and 60 on the front.

edit. However, I would not feel safe with a repaired tyre at that pressure, so would always get a new tyre, rather than puncture repair.

 

[PP Bear]

I think as with everything else, it’s all personal and Funsters run their tyres to what they believe is right for them.

Me, I run 80 front, 80 rear as listed by both Michelin and manufacturers and I’m very happy with that

Had my tyres fitted in 2014 and they’re in perfect condition and I’ll look to change them at the 10 year point as recommended by Michelin, if they’re deemed to be in need of replacement. Of course earlier if they become damaged or below legal limit.

 

[activecampers]

You need axle weighting, not total mass.
Then contact the technical department and ask! (Or look for their technical documentation)

The OEM M&S tyres I have on our van, Fiat say one thing, online calculators say another, but the tyre makers (continental) have a huge technical document for each tyre, usage, weight, and the appropriate pressure. Their pressure was v different from Fiat!

eg
My details

• Continental VanContact4Season
• 225/75/R16C 121/120 loal
• Front axle weight (pre packing) 1560kg
• Read axle weight (pre packing) 1440kg
• Loaded, with water, bikes, and stuff, would expect
• Front axle: 1650kg
• Rear Axle: 1700kg

Continental has sent me a 3mb technical data book.

This shows the pressure should be 3bar (42.5psi) - which is good for 1725kg axle loading, so is the same for front and rear.

What is confusing, is he said Fiat give pressures to the maximum axle weight which on my van is 2000kg - and at that the pressure should be 3.75 bar (55psi). 5 bar, as recommended by fiat, is for axle of 2600kg which is far in excess of the vans rating. Even 4.5bar for the front is 600kg higher than the front axle rating.. He also said the pressure is based on weight - so why the tyresafe website has different pressure for F/R with the same load is odd.

So the final results

• Fiat: F 65psi R 73psi
• https://www.tyresafe.org/motorhome-tyre-pressure/ F: 51psi R 59psi
• Continental: 44psi F & R

 

[tezza-alli]

Take the van to a weigh bridge loaded with what you normally take away with you. Get them to weigh the the front axle, rear axle and both together. Then contact the actual tyre manufacturer and they will tell you the correct pressures for their tyres for front and rear.
Too many people are running on over inflated tyres banging and bumping along the road at 80psi. Over inflated tyres are just as bad as under inflated tyres.

 

[cyberyacht]

Hi anyone running Michelin Agilis Cross climates? 215/70 R15 tyres what pressure are you putting in? 3685 ton MH.

That is one heavy van!

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[Jamesh]

That is one heavy van!

Is on those tyres.

I'd look at getting 16" rims and 225 75 16 as per the maxi chassis.

 

[Monkeynuts2215]

Hi anyone running Michelin Agilis Cross climates? 215/70 R15 tyres what pressure are you putting in? 3685 ton MH.

We have camper tyres on and told to put 70 all round.

 

[TR5]

I have on an Autotrail Delaware - GVW 4500kg, but never running fully loaded. 225/75/R16. 121 load index - I run fronts at 55psi and rears at 72psi.

I worked out the % load against the max load on each tyre, and used the same % against the maximum tyre pressure.

 

[JaG]

I have on an Autotrail Delaware - GVW 4500kg, but never running fully loaded. 225/75/R16. 121 load index - I run fronts at 55psi and rears at 72psi.

I worked out the % load against the max load on each tyre, and used the same % against the maximum tyre pressure.

Are they Michelin Agili?
The reason I ask is I have the Cheyenne 740, same specs and wanted to know are they suitable for mine.

 

[Rumour and Innuendo]

The ONLY way to be sure is to have the van loaded, take it to a weighbridge and get the axle weights. Then contact the tyre manufacturer and get the proper pressures for you circumstance. You have four bits of rubber on the road, all there is between you and oblivion! It needs to be right rather than a ball park figure.
Our old Talbot had a converters pressure of 50psi front and 65 rear. After weighing ready to do, Continental gave me the figures 48psi front, so similar, but 55 rear! It made a world of difference to the ride and handling, especially in the wet.

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[robmilton]

I have the
bessacar 765 and fitted tyre pressure monitors, its surprising how the pressures go up when traveling 10-15 psi easily, i now run 50psi front and 60 rear, comfy ride and they run at around 57 front and 70 rear hot.

 

[frwjd]

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

 

[Ingwe]

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

Thank you for this. Using the last weights when we went to a weighbridge as follows:
Front Axle= 1240kg
Rear Axle=2000kg
Gross=3260 kg
the recommended pressures are: Front 44psi, rear 80psi

 

[frwjd]

Fronts seem low but I am really not an expert

 

[10tenmen]

Michelin Agilis 15” 3650kg max I run 65 rear and 60 front and I have been to a weighbridge

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