well BMW makes 21" wheels for the X5 as an option, i do not see why you couldnt go with 22s? there are people who have done it. I personally have 20s and think theyre big enough (but i do have the older gen X5) Go for the 22s, i think they'll look great. And just be careful around pot holes.

beyern is a great company for rims, you wont be disappointed

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BMWCCA