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      12-14-2022, 05:12 PM   #1
fl1by
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Square setup for xDrive G80 - what is being run?

What is out there PS4S or Cup2? 285 all round? go 305? 19 or 20? I am currently using 19/20 on my G80 Comp Xdrive and don't the car to freek out on a new combo. I Have heard that OD is critical on xDrive cars.
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      12-28-2022, 05:26 PM   #2
BMWRacer523
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Xdrive here. For track I have cup2 on 19/20 oem setup. I have a 19 square setup for winter on PA5s (also an oem recommended winter size). I would go 19 square for track too but then I would have to buy yet another set of wheels and I am running short of garage space to store a 4th set lol.
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      12-28-2022, 11:16 PM   #3
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Whatever size you're looking for. Compare them in the tire calculator. 1.0% overall diameter is BMWs recommended max. Click on Tire Comparison. Diameter size 2 % is what you're looking at. In this instance you can see the OEM sizing is +0.4%

https://tiresize.com/calculator/
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