Buick Regal TourX Wheel Sizes by Year
Year matrix of bolt pattern, center bore, thread, rim and tire sizes from the catalog.
| Year | Bolt | Bore | Thread | Rims | Offset | Tires |
|---|---|---|---|---|---|---|
| 2020 | 5x115 | 70.3 | M12 x 1.5 | 8x18, 8.5x18, 8.5x19 | ET42, ET49 | 235/50R18, 245/45R18, 245/40R19 |
| 2019 | 5x115 | 70.3 | M12 x 1.5 | 8x18, 8.5x18, 8.5x19 | ET42, ET49 | 235/50R18, 245/45R18, 245/40R19 |
| 2018 | 5x115 | 70.1 | M12 x 1.5 | 8x18, 8.5x18, 8.5x19 | ET42, ET49 | 235/50R18, 245/45R18, 245/40R19 |