The rear hub on the x6 is diffrent then x5.
X6 rear hub is 72.6mm and x5 is 74.1mm.
Both front hubs on x6 and x5 are 74.1.


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So you could get the 72.6mm hole on that X6 rim 'bored out' to 74.1mm.

FWIW.

Still will cost 50-100. And agree the tires are quite small compared to OE fitment.

 

Those staggered tires are not paired correctly the diffrence in height is 7.7% which will screw up your transmission.
When running staggered tires the max they should be off size wise is 0.7% ideally you want 0.0% difference in height.
My 20" are 275x40x20 front, rear are 315x35x20 diffrence in height is 0%.


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Good point, it was a typo, rear is 255/40R18

 

Ok so with the rear being 255/40/18 the height is 0% difference however hub is still 72.6mm not 74.1mm.


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Ok so with the rear being 255/40/18 the height is 0% difference however hub is still 72.6mm not 74.1mm.


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I have asked the seller to check. Suspect that these did not come off an X6 since they did not have R18 wheels at all. At least not what I can find.

 

You can always see if the rear rims fit your car.


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You will be undertired in front with horrid understeer!


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If you need new tires, why are you buying rims and tires from an X6? Especially if there only 18"s? If your on a budget, I buy my tires off eBay. I have buy used RFTs from reputable sellers (non-patched). Usually can find tires with 10/32 or 11/32 for cheap and free shipping.

If I was going to buy a new set of tires/wheels, I would search CL or Offerup and score some OEM 20"s from an X5 and be done. There are many people out there that ditch the factory 20"s and want 22"s, done this many times with my rides over the years.