"So as you said the smaller the offset the closer to the arch.
The larger the offset, the closer the face of the wheel is to the hub, therefor creating more space between the face of the wheel and the arch.
You also need to take into account the width of the actual rim.
E.g a 9.5" rim with and offset of 45 will sit closer to the arch than a 9" rim with the same offset."
Mart.
