Sizes of Tires and Rims for the Cadillac
CT6-V GM Omega (2019-2021)
| Tire size | Tire pressure | Rim size | Wheel fastener | Center bore |
|---|---|---|---|---|
| 245/45 ZR19 | Front: 2.2 bar Rear: 2.4 bar |
8.5Jx19 ET33 | Nuts: 5 x 120 (PCD) | 66.9 mm |
| 245/40 ZR20 | Front: 2.2 bar Rear: 2.4 bar |
8.5Jx20 ET33 | Nuts: 5 x 120 (PCD) | 66.9 mm |
| 255/35 ZR21 | Front: 2.4 bar Rear: 2.6 bar |
9Jx21 ET30 | Nuts: 5 x 120 (PCD) | 66.9 mm |
CT6 GM Omega II (2019-2021)
| Tire size | Tire pressure | Rim size | Wheel fastener | Center bore |
|---|---|---|---|---|
| 235/50 R18 | Front: 2.1 bar Rear: 2.2 bar |
8Jx18 ET35 | Nuts: 5 x 120 (PCD) | 66.9 mm |
| 245/45 R19 | Front: 2.2 bar Rear: 2.4 bar |
8.5Jx19 ET33 | Nuts: 5 x 120 (PCD) | 66.9 mm |
| 245/40 ZR20 | Front: 2.2 bar Rear: 2.4 bar |
8.5Jx20 ET33 | Nuts: 5 x 120 (PCD) | 66.9 mm |
| 255/35 ZR21 | Front: 2.4 bar Rear: 2.6 bar |
9Jx21 ET30 | Nuts: 5 x 120 (PCD) | 66.9 mm |
CT6 GM Omega I (2016-2018)
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| Tire size | Tire pressure | Rim size | Wheel fastener | Center bore | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 235/50 R18 | Front: 2.1 bar Rear: 2.2 bar |
8Jx18 ET35 | Nuts: 5 x 120 (PCD) | 66.9 mm | ||||||||
| Front: 235/50 R18 Rear: 265/45R18 |
Front: 2.5 bar Rear: 2.7 bar |
Front: 8Jx18 ET35 Rear: 9Jx18 ET35 |
Nuts: 5 x 120 (PCD) | 66.9 mm | ||||||||
| 245/45 R19 | Front: 2.2 bar Rear: 2.4 bar |
8.5Jx19 ET33 | Nuts: 5 x 120 (PCD) | 66.9 mm | ||||||||
| Front: 235/45 Z R19 Rear: 265/40ZR19 |
Front: 2.5 bar Rear: 2.7 bar |
Front: 8Jx19 ET35 Rear: 9Jx19 ET35 |
Nuts: 5 x 120 (PCD) | 66.9 mm | ||||||||
| 245/40 ZR20 | Front: 2.2 bar Rear: 2.4 bar |
8.5Jx20 ET33 | Nuts: 5 x 120 (PCD) | 66.9 mm | ||||||||
