[Scratchboat]

Here’s a list of the various tire/wheel fitments BMW (and 3rd-party tuner Hartge) offered for the E84 X1 ...

17x7.5” Square (Offset 34) 225/50R17 (BMW)
18x8” Square (Offset 30) 225/45R18 (BMW)
18x8” F / 18x9” R (Offset 30/41) 225/45R18 / 255/40R18 (BMW)
19x8” F / 19x9” R (Offset 30/41) 225/40R19 / 255/35R19 (BMW)
20x9” F / 20x10” R (Offset 33/40) 245/30R20 / 295/25R20 (Hartge)