z4 rims on e53
 

I have a set of z4 107 rims. I know they would need a hub adapter to fix , but my question is . Would the be able to handle the weight of the e53?

z4 rims on e53
 

My car came with some M-contour rear wheels from I think z4 or z3. Didn't need adapter so maybe z3. (also apparently from two z3s since they are apparently staggered with wider rims on the back.

z4 rims on e53
 

AccuWheel ACHR74-7256M Aluminum Wheel Hub Centric Rings (74.10mm OD to 72.56mm ID) - Pack of 4 Hubrings https://www.amazon.com/dp/B00KSO5XLO..._yKJqBb1AEP25R

The adapters are called "hub centric rings" or similar. Don't search for the word "spacer" or "adapter" you will have no luck.

If Z4 same diameter as the E70 that product link is exactly what you need. I bought that exact item to put E70 wheels on my wife's E53.

Looking at the master reference of BMW wheels the 107s from the rear of the Z4 are within 2mm the same offset as the style 69 (my favorite style) I am guessing you are anticipating using the full set from a Z4 which includes a smaller rim from the front but is 8" vs 8.5 and with an offset almost identical to my style 69s. I would be ok with running 8x18 and 8.5x18 though I would run the tire sizes through the tire size calculator to verify the rolling circumference is very similar.

https://www.carbibles.com/tire-size-calculator/

I would advise against it, S the Z wheels aren't built for the dynamics of a 5000 libs SUV

I have seen e39 wheels on a X5