What's the factory offset of the steelies that come standard on the xA's?

Thanks.

For both xA and xB Can be seen on Tread and Butter section

Bolt Pattern
4x100

Center Bore
54.1mm

Nut Size
M12x1.5

Stock Wheels/Tires
15"x5.5" +38 offset / 195/60-15
37 lbs per set
Alloy wheel: 16.7 lbs


http://www.scionlife.com/forums/viewtopic.php?t=348

Is the weight of 37lbs for a "set" of 4 wheels and tires or a "set" meaning 1 wheel and 1 tire?

it's got to be wheel plus tire. (one set of wheel and tire)

Thanks for the help guys. I appreciate it.