ReluctantTraveler
Well-known member
Absolutely not true.
I have been running 305R7019.5 Michelin XDE2 tyres on our rig for 20 years.
Michelin publish extensive data for airing down these tyres.
This chart is based directly on that data, as are the pics.
We would run on the yellow all the way across the Simpson, for example and for difficult places we would go down even further for short sections.
View attachment 818360View attachment 818361
For climbing "Big Red" we would be down well under 20psi.
Cheers,
Peter
OKA196 motorhome
That's a REALLY useful charge, thank you!
On DRWs you'd of course run into tire rubbing, but good to know they theoretically can be aired down if you keep your speed low.