Quote Originally Posted by cj011 View Post
What is the backspacing on those or do they only come in one size? Great progress with the build BTW
Thank you,

these wheels only come with an offset of 30 in 5x100 configuration. This translates to a backspacing of 5.68" (according to online calculators).

As a side story I've now had an "ah ha!" moment on offset vs backspacing. As we know offset is just how far offset the mounting face is from the center-line of the wheel. Backspacing must incorporate the actual edge of the wheel and not just the advertised width (which is NOT measured!!!). This is why the backspacing on a ET30 wheel is 5.68 and not 5.18. Maybe i like backspacing now instead of offset. It is easier to understand how the wheel will actually fit.