Rims can have zero offsets, positive offset, or negative offset. The higher the offset, the more the hub of the wheel is sucked under the UTV, which keeps the center of gravity under the cab of the machine. If you want to cut cookies and make your ACE harder to flip, a wider tire and deeper wheel offset can help. Many ACE owners choose to run wheels from the Polaris RZR 1000 on their rig because the RZR 1000 side by sides comes with factory rims that are +3” offset. However, the RZR tires will likely hit the sway bar in your ACE because of the backspace on the RZR wheel. The other problem is that the taper and diameter of the ACE lug nut don't fit the rim properly and will probably wallow out over time -- and you only use the last 1/4" of the thread on the stud. So to clear the sway bar on an unlifted ACE, you’re probably going to need wheel spacers to run RZR wheels. Luckily, there are many aftermarket wheel options for the ACE, so if you don’t want to add wheel spacers or wheel adapters that will make your wheelbase wider, there are tones of ACE rims to choose from to meet your requirements.