he centerbore of a wheel is the size of the machined hole on the back of the wheel that centers the wheel<br> properly on the hub of the car. This hole is machined to exactly match the hub so the wheels are precisely<br> positioned, minimizing the chance of a vibration. With a hubcentric wheel, the lug hardware will not be<br> supporting the weight of the vehicle, all they really do is press the wheel against the hub of the car. Some<br> wheels use high quality, forged centering rings that lock into place in the back of the wheel. This is<br> acceptable alternative.<br> <br> If you have non-hubcentric (lugcentric) wheels, they should be torqued correctly while the vehicle is still off<br> of the ground so they center properly. The weight of the vehicle can push the wheel off-center slightly<br> while you're tightening them down if left on the ground.
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