Michellin Agilis Max Pressure

[dunnah01]

Just fitted four Michellin Agilis 225/75-16 118Q CP Tyres. Old 225/75-16 116Q CP were 80psi max but new ones are only 75psi. Has this always been the case or have Michellin reduced their max pressures. Rapido state 80psi all round for my M/H although actual weight of 2050kg all up doesn't seem to need this. Fitter quite correctly put 75psi all round. Confused..

 

[Phill D]

if the 75psi is marked on the tyre walls that you are fefering too then i think you will find that is only for the US market and not for UK standards.
same with Conti's says 68psi to be ignored in UK & europe

 

[Speve]

We run our 4500 kg Hymer with Agilis camper front 65psi rear 78psi that’s pretty much for our van running at 4250kg towing a car trailer 1700kg and it still feels a bit of a hard ride even with full air suspension?

 

[dunnah01]

My old Agilis (116Q) had 80psi on the side wall but the new ones (118Q) have 75psi - just wondering if Michellin have downrated their Agilis or if the 118Q's were always 75psi. I suppose I'm asking for somebody with pre 2019 118Qs checking max psi on the tyrewall to see what the max psi used to say for 118Qs

 

[Howard H]

Mine are pre 2019 and have max75 psi .

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[dunnah01]

Mine are pre 2019 and have max75 psi .

Ah OK - do you know if yours are 116Q or 118Q?

 

[Speve]

Ours are 116q with 80psi tyres built 3716 and van first registered 2018

 

[Howard H]

Ah OK - do you know if yours are 116Q or 118Q?

118q

 

[dunnah01]

Thanks all - it seems that the 116Q is 80psi max and the 118Q is 75psi max. The fitter said that the 118Q sidewall was noticeably stiffer than the 116Q which makes sense and but not sure why pressure is reduced. Hey-ho I'll just run at 75psi and not worry to much about 5psi here or there.
My next head scratch is what the pressures should increase by when warm. They went up 10psi today with a 5 deg rise in temperature. Wonder what they'll do in sunny climes?

 

[PeteH]

I run Conti`s. at 55/60 cold front 65/70 cold rear. On the road they rise by approx 10 deg; and stay there with the temperatures stable. ALL tyres will rise in pressure when running. The Weigh bridge ticket shows 3460Kg with just a driver.

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[dunnah01]

I run Conti`s. at 55/60 cold front 65/70 cold rear. On the road they rise by approx 10 deg; and stay there with the temperatures stable. ALL tyres will rise in pressure when running. The Weigh bridge ticket shows 3460Kg with just a driver.

I was a bit surprised that that Michellins rose by 10psi on a short run but they did stabilise. New TPMS toy and every day is a school day

 

[RandallC]

If you really want a diffinitive answer to the recommended tyre pressures,

get it weighed and email Michelin with your axle weights and tyre size and they will advise best inflation pressures. (suggest weigh loaded kills 2 birds, you'll know if you need to diet)

 

[dunnah01]

If you really want a diffinitive answer to the recommended tyre pressures,

get it weighed and email Michelin with your axle weights and tyre size and they will advise best inflation pressures. (suggest weigh loaded kills 2 birds, you'll know if you need to diet)

I've heard Michellin are a bit Gallic with their advice on pressures, unlike Continental. They have advised the max 80psi all round for a similar setup to mine (2100kg/2400kg) with similar actual axle weights (1650kg/2050kg) so not really in a hurry to ask them. I'm absorbing overall forum thoughts and experience at the moment and knowing me I'll eventually decide on some random pressures.

 

[RandallC]

I've heard Michellin are a bit Gallic with their advice on pressures, unlike Continental. They have advised the max 80psi all round for a similar setup to mine (2100kg/2400kg) with similar actual axle weights (1650kg/2050kg) so not really in a hurry to ask them. I'm absorbing overall forum thoughts and experience at the moment and knowing me I'll eventually decide on some random pressures.

Are we talking MAX pressure or what's actually recommended/necessary inflation pressures based on best wear and rolling resistance?

 

[dunnah01]

Are we talking MAX pressure or what's actually recommended/necessary inflation pressures based on best wear and rolling resistance?

I was originally banging on about 80psi max pressure which is what is advised by Michellin, Rapido and Tyresafe, but the new tyres say 75psi Max so now looking at actual axle load requirements based on general consensus

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[PP Bear]

Just fitted four Michellin Agilis 225/75-16 118Q CP Tyres. Old 225/75-16 116Q CP were 80psi max but new ones are only 75psi. Has this always been the case or have Michellin reduced their max pressures. Rapido state 80psi all round for my M/H although actual weight of 2050kg all up doesn't seem to need this. Fitter quite correctly put 75psi all round. Confused..

Look at the data sheet.......

Mitchelin Agilis Camping Tyre Pressures - The Facts

There's probably not a week goes by when someone doesn't ask the question of tyre pressures. It's at this stage that every other motorhome owner who has their tyres blown up to a desired pressure, passes on the info, which is wonderful as that's what we do on the forum. However it does concern...

www.motorhomefun.co.uk

 

[Hettie's Crew]

If you really want a diffinitive answer to the recommended tyre pressures,

get it weighed and email Michelin with your axle weights and tyre size and they will advise best inflation pressures. (suggest weigh loaded kills 2 birds, you'll know if you need to diet)

No they won’t, they’ll say 79psi rear and possibly a reduction to 65psi front, if you choose to. This will be regardless of your weight.
This is why I choose to fit Continental who are extremely helpful and produce their data sheet with all the weights and pressures for all sizes.

http://blobs.continental-tires.com/www8/servlet/blob/85806/e0854f2c7866c64da551474b998ef8b3/download-technical-databook-data.pdf

 

[dhall26]

It's quite easy to calculate the correct tyre pressures for your MH
Fully laden take to weigh bridge, and get front and rear axle weights.
Divide Axle weight by 2 to get average weight on single wheel.
Divide the actual weight from above by the MAX weight stated on the tyre (whatever make)
Then multiply the MAX pressure stated on the tyre by the answer.
The figure that you get will give a comfortable ride and even tyre wear.
The original chassis plate will always quote a tyre pressure for the max axle weight and not for the actual axle weight.
So on my van the pressures on the chassis plate are for a overall max weight of 4600KG BUT it is a 3500KG max vehicle so if I used the pressure on the chassis plate we would bounce about all over the place.
David

 

[dunnah01]

Look at the data sheet.......

Mitchelin Agilis Camping Tyre Pressures - The Facts

There's probably not a week goes by when someone doesn't ask the question of tyre pressures. It's at this stage that every other motorhome owner who has their tyres blown up to a desired pressure, passes on the info, which is wonderful as that's what we do on the forum. However it does concern...

www.motorhomefun.co.uk

The Michellin data sheet says ETRTO require them to inflate all CP tyres (rear axle) to 80psi which is 5psi more than their 75psi max pressure for the 118Q CP tyre which is why I need to dig a bit deeper

 

[pandas]

Thank you for contacting Michelin customer care.



Regarding your query, the recommended tyre pressure for the rear (single) axle of a motorhome running on the MICHELIN Agilis Camping is 80 PSI (5,5bar) and for twin axle 69 PSI (4,75bar).



This is due to the construction of the tyre with 2 casing plies enabling the use of higher pressures. Its construction and the use of higher pressures is designed to cope with continual heavy loads sometimes found on motorhomes and can help with wear pattern issues, if lower pressures are used particularly on the rear axle.



The front tyres however can be adjusted down to a pressure of 65 PSI for a more comfortable ride and optimum performance.



Here are some safety points to be taken into account when it comes to tyre pressures:



1. Always check the pressures when the vehicle tyres are cold. We consider the tyres as being cold if they haven’t been used for at least 2 hours of it they have rolled less than 3 miles at low speed. If the tyres are not under these conditions they are considered to be hot.

2. When the tyres are hot you should always add 4,4 PSI to the recommended pressure.

3. Please remember - Never deflate a hot tyre!



I hope this information was helpful and please do not hesitate to contact us again if you have any further questions. We are happy to help.





Kind regards,

Essi



MICHELIN Customer Care
Passenger Car & Light Truck Tyres
Tel: 0800 031 8802
E-mail: contact@tc.michelin.eu
Contact us: http://www.michelin.co.uk/contact
Web: http://www.michelin.co.uk

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[Don Campbell]

Go to a weighbridge and get your front and rear axle weights and then email Michlin for their advice. If Michelin Europe don't respond go to the Michelin US site and you will get a helpful answer to your email because over there the customer is king.

 

[Pausim]

This is the pressures (bar) my manual gives for Michelin Agilis Camping 225/75 R16

 

[dunnah01]

This is the pressures (bar) my manual gives for Michelin Agilis Camping 225/75 R16

View attachment 364191

Interesting - The Michellin guide is clear that the rear should always be 5.5 bar (80psi)? I've emailed them with my actual axle weights from the weighbridge so I'll see if they come back with something useful.

 

[Pausim]

Interesting - The Michellin guide is clear that the rear should always be 5.5 bar (80psi)? I've emailed them with my actual axle weights from the weighbridge so I'll see if they come back with something useful.

View attachment 364221

Interesting indeed. However I find it strange that load is not seen as a factor but only for the rear axle,

 

[Scotch mist]

I’m running 65-70 front & 50 rear (5t tag ) , I run a fleet of 3.5 ton vans & they were set to 50-55 back & front
80psi seems way to hard for me

just My opinion ?

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[dunnah01]

No they won’t, they’ll say 79psi rear and possibly a reduction to 65psi front, if you choose to. This will be regardless of your weight.

http://blobs.continental-tires.com/www8/servlet/blob/85806/e0854f2c7866c64da551474b998ef8b3/download-technical-databook-data.pdf

As this - Michellin confirmed today that rears must be 80psi if CP tyres fitted. Fronts can go down to 65psi. 225/75-16 118R CP tyres must also be 80psi despite 75psi shown on sidewall of tyre.

 

[BigDean]

Sorry to resurrect this, but I am still confused. I have the Conti document, my tyres (225/75/16CP) clearly show that according to the manufacturer they should be Front 48, Rear 60. If I run it through the Tyre Safe website it says Front 53, Rear 80. The sidewall of the tyre says max 69.

So, who is correct, the manufacturer or Tyresafe?

Thanks
Dean

 

[RandallC]

Hi, just take your mh to a weighbridge. Get the axle loads (assuming NO overloading)
Email Michelin with the tyre size and normal axle loading a s per weighbridge. They will advise tyre pressures.

 

[Mr Chrysalis]

As others have said the side wall marking us for the US market only. Follow Michelin advice which according to a copy o this thread is 80 psi rear and 65 front

 

[Dorset Diver]

Michelin were very precise when I gave them my actual loaded weights; 64 psi front and 73 psi back. The French lady I spoke with could not have been more helpful and informative. IMO it is well worth getting your van weighed fully loaded and making the call.

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