I notice there is quite a few rr wheels for sale.
18” to 22” some with good tires
If I ever get mine going, it wont belong before I will be needing new tires
I am on 20”
I have the caravan, bought about three years ago and if I get going there will be a lot of gravel roads to say the least
I have read comments saying the smaller wheel size is better in some cases
If I have to buy tires it might be better to buy some different size wheels with good tires on them
What are your thoughts RR 2005 4.4 petrol
Any spelling mistakes are the fault of spellchecker
Previous MG J2, CITROEN light 15 x 2 gone unfortunately
Present MERC 180e, RANGE ROVER L322, JAGUAR XJS, MERC 280SE, MG F, JAGUAR S-Type 6v 2003, jaguar s-type 8v 2004, Ford Cougar

I think it’s generally smaller wheel / bigger sidewall is better off road due to the protection it gives the wheel. If the gravel is full of pot holes, then you’d appreciate more sidewall - if it’s as smooth as tarmac then you won’t care.

The L322 was designed for 18-20 so anything bigger will be a very firm ride, even on a relatively smooth surface.