I currently have OEM rims which I believe are 12×7.5 wide and the offset is 5.25"+2.25". Currently on OEM tires as wells which are 25×8-12 and 25-10-12.

I am looking to get wheels that are 12×7 and 5.0"+2.0" and run tires that are 26-9-12 and 26-11-12.

A lot of trails I ride have a 50" gate and want to make sure I will clear them.

Current:
12×7.5 5.25"+2.25" 25.8-12 25-10-12
Looking at:
12×7.0 5.00"+2.00" 26.9-12 26-11-12