You will need to take a measurement for the “Back Spacing” which we will translate into the correct offset for the wheel. Reference the illustration below for measuring the back spacing. You need to take the wheel and lay it down so the machine side of the wheel is facing up.

The Back Spacing dimension is the distance from the extreme back edge of the rim, not the bead seat, to the mounting pad of the disc. Lay a straight edge across the back edge of the rim and measure down to the mounting pad. Nearly all custom wheels use this measurement method to indicate the location of the mounting pad in relation to the rim. We can use this dimension to calculate the actual Inset or Outset measurement for the wheel.