Does anyone know what the center hole diameter is supposed to be for 4-lug Mahle's?
Because my wheels have two layers of powder coating and I already had to grind some of the paint away on the inside recess, in order to have them fit on the center rim (front) of the brake disks.
I need new center caps and would like to know if the diameter is actually 2 1/2" (I measured 2 1/4" diameter for my exterior wheel holes).
Thanks in advance,
J.