Originally Posted by Qsilver7

Is there a reason you want to use "spacers" vs hub centric rings? And the site that sells the wheels in question ECS Tuning...also sells spacers & hub centric rings.

The front wheels discussed in this thread have the same offset as the 20" wheels offered on the e53 (45mm)...and the rear wheels only differ by 5mm vs the 20" rear wheels offered on the e53 (BMW=30mm & Alzor=35mm).

Again, just curious as to why you want "spacers"...because they aren't "needed"...but if there's a specific reason why you "want" them...then that'd be a different story. But the hub centric rings...you DO need those.