Join Date: Dec 2013
My Motorhome: Oh no - a caravan!!
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From Michelin - tyre pressures and axle loadings.
FWIW, I emailed Michelin to ask about tyre pressures based on the max axle loadings for our 2008 Kontiki 669 tag. We're not loaded to the max yet but thinking that the max loads would apply to many other AL-KO tag owners, I waited to see what they said.
Based on max axle loading, ie. 2100kg front and 1500kg for each rear axle, fitted with Michelin Agilis CP 225/75-16CP 118Q. This is their reply but you have to ignore the sales blurb re. the Agilis CP tyre. Interesting to note that they are now saying as a standard (like Continental and others), that the rears should be run at max, ie 80psi.
"Thank you for your enquiry about pressures for your motorhome.
The Michelin Agilis Camping tyre is designed especially for motorhomes and would be the preferred fitment on a motorhome.
The Agilis Camping tyre boasts a long life by using the same technology as the Michelin Agilis van tyre range. It has a reinforced construction to enable the use of higher pressures, has 8 kerbing protectors built in to each sidewall to increase resistance of sidewall scuffing and is M+S (mud and snow) marked to give sufficient grip when occasionally travelling in difficult conditions such as unsurfaced roads, mud and snow.
The suggested tyre pressure for the rear of a motorhome running on the Agilis Camping is 80psi.
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 pressures however can be adjusted according to accurately weighed axle loads for a more comfortable ride and optimum performance.This recommended pressure is 54psi.
Should you require any further assistance please contact us on 0845 366 1590 (UK & NI) or 0044 (0) 1782 401590 (ROI"
I'm now going to drop mine from 70 to 60 front and rear and see what the effect is. Hopefully with the fronts at 60psi, the ride might be less "crashy" over bumps. May also try 54psi on the fronts (they WILL look flat as have been there before) but with the rears at 60psi.
Last edited by deefordog; 02-06-2015 at 14:22.