If you go to this link, there are many wheels pictured on this page and the following pages and each has specs for the wheels. Maybe this will get you closer. If this doesn't work, and you want the G rated tires, maybe upgrading the wheels would be the answer.
https://www.trekwood.com/parts-searc...egory=&page=29
The wheels that can handle G range tires and 110 psi will be at least rated 3750 lbs of capacity or more. Anything less than that are probably rated for F range tires or less.