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Wheel Data & Information
Definition of Offset
Offset is the distance from the centerline of the wheel, to the face of the mounting surface of the wheel, which contacts the hub. See Figure 1.
Definition of Backside Setting
Backside Setting is the distance from the mounting surface of the wheel, which contacts the hub, to the back rim flange. Actual backside settings indicated on chart may vary slightly with each wheel. See Figure 2.
By comparing the backside setting of the Ultra Wheel with an original equipment wheel, then allowing for differences in rim width, your clearance requirements can be determined. Use a ruler and steel straight-edge (See Figure 3) to determine exact backside setting.
Torque Specifications
Tighten all lug nuts to the proper specifications listed in the vehicle owners manual. Use the chart below if the owner's manual is unavailable.
| 7/16" | 1/2" | 9/16" | 5/8" | 10mm | 12mm | 14mm |
|---|---|---|---|---|---|---|
| 55-65 ft lbs | 75-85 ft lbs | 95-155 ft lbs | 125-150 ft lbs | 45-55 ft lbs | 70-80 ft lbs | 85-95 ft lbs |
All lug nuts must be checked and retorqued to the proper specification immediately after 25 miles