Purchasing first RV 09 Access 31j

[Nana0304]

Hello, We are in process of buying our first Rv. It is a 2009 Access 31j.
Could please give advice on new tires. Chassis tire is LT 225 75R 16E. What is recommended tire for motorhome??? We know there is a weight issue with "bunk" side being heaviest. HELP!