2018 BMW M3 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.
- Rear245/30R21
- Rear255/30R20
- Rear255/35R19
- Rear255/40R18
All confirmed configurations
| Size | Position | Width | Aspect | Rim | Load | Speed |
|---|---|---|---|---|---|---|
| 245/30R21 | Rear | 245 | 30 | 21" | 105 | Y |
| 255/30R20 | Rear | 255 | 30 | 20" | 92 | Y |
| 255/35R19 | Rear | 255 | 35 | 19" | 92 | Y |
| 255/40R18 | Rear | 255 | 40 | 18" | 95 | Y |