OEM Tire Size for 2021 BMW X3 M (F97)
Maintaining the factory-recommended tire dimensions is crucial for the safety, fuel efficiency, and handling of your 2021 BMW X3 M (F97) M Competition 3.0L xDrive 8AT AWD (510 HP). The standard equipment tire size for this specific trim is 255/40R21.
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Thinking about upgrading your wheels? Before changing your rim diameter from the factory 21-inch size, always use our Tire Size Calculator to ensure your speedometer remains accurate.
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