90 ex mod tire/Rim replacement

[Cruzer]

Looking at using Aluminum 16 disco 1 rims for daily town driving and keeping the Wolf rims with the 7.50/16 for trial riding. My question is what is the ideal tire size to put on the 16 inch disco rims where I won't rub or have any issues.

[Bargrip]

235/85-16 should work fine without rubbing I believe that size was standard fitment on the defender 110 with boost alloys. It's also very close to the 750's that you are running...

[Red90]

If you are not aware, you will need to clearance things a bit to fit the alloys to the early axles. They hit the drive flange bolts.