Offset

Ok if the picture confuses you, maybe you shouldn’t be attempting this.

Anything will bolt up if you have the right bolt pattern. The question is will it rub (the wheels/tires against suspension or body parts). That’s where the offset comes in.

You need to provide a lot more info. Specifically:

-car
-tire sizes
-suspension setup

If you are still confused, try using one of the calculators linked in the Tech library. Punch in your stock wheel/tire/offset combo, and try to match the overall diameter to whatever you are planning to run. The closer to stock diameter the better. Until you understand what you are doing, I wouldn’t try doind anything that is not very close to stock overall diameter.