2021 Cadillac CT5 Tire Size
Confirmed OEM tire sizes for this model year. Multiple sizes may apply depending on trim and wheel package — all catalog options are listed.
- Option245/40R19
- Option245/45R18
- Option255/35R20
All confirmed configurations
| Size | Position | Width | Aspect | Rim | Load | Speed |
|---|---|---|---|---|---|---|
| 245/40R19 (run-flat) | Front / all | 245 | 40 | 19" | — | — |
| 245/45R18 (run-flat) | Front / all | 245 | 45 | 18" | — | — |
| 255/35R20 | Front / all | 255 | 35 | 20" | 95 | Y |