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BMW Z4 made in the year 2019-01-01 have the following bolt pattern: 5x112 with the following center bore: 66.5. On this model, lug bolts are used to mount the wheel to the hub. Lug bolt thread: 14x1.25 is recommended. The ET meassurement for this model is 32 and the recommended wheel size is between 17 and 20 inches.