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
