[Bilbofraggins]

I have 20” x5rims on my 2013 X6M (winter boots in pic). These rims are 74.1mm centerbore - Parallel 275/40/20 on all corners. I don’t use spacers on the front...and bolt on as is, matching the original fronts. On the rear I use just 10 mm spacers and hub centric rings 72.56 to 74.1 . With respect to the rear, the spacers are installed on the hub then the rings.. This is my winter setup... Never any problems.