How do you determine off set for wheels. I have heard of high and medium. What do they mean?
Wheel offset is the relative position of the wheel to the hub. The hub being where you put the wheel on the car. offset is in or out relative to having the holes in the wheel being exactly in the center of the rim. You will see that the space between the inside bead of the tire or rim of wheel measured to the attachment area may be different on the outside. -|-- or --|-- or --|- the middle one with zero offset. positive offset is where the wheel is wider on the outside and negative offset is where the inside is wider on the inside. offset determines the location of the wheel in the wheel well. too much positive offset puts the wheel out further where it may hit the body. too much negative offset may cause the tire to hit the inside wheel well when turning. too much positive offset can add additional stress to the wheel hub and the offset should only be as much as the wheel hub is designed for. Consider using the original factory offset for the wheels when changing wheels to fancy ones.