[hcoles]

Here is a cut and paste from googling the subject


Now to seat the bead. This either requires a lot of air or some ingenuity. First find the yellow dot on the sidewall of the new tire. This dot signifies the light spot on the tire. Place this dot at the valve stem. You may have to relocate this dot several times to get the ideal spot for it. The object of this exercise is to use as little weight as possible when balancing the assembly.