315/30 R21 tires: vehicles that use this size
315/30 R21 is a factory or optional tire size on 8 models.
| Vehicle | Years | Fitment |
|---|---|---|
| Porsche 911 | 2021–2025 | Factory · rear |
| Mercedes Benz AMG GT 43 | 2021–2025 | Optional · rear |
| Mercedes Benz AMG GT 53 | 2019–2025 | Optional · rear |
| Mercedes Benz AMG GT 63 | 2019–2025 | Optional · rear |
| Mercedes Benz AMG GT 63S | 2019–2023 | Optional · rear |
| Mercedes Benz AMG GT 63S E Performance | 2024–2025 | Optional · rear |
| Porsche Panamera | 2017–2024 | Optional · rear |
| Porsche Panamera Sport Turismo | 2018–2023 | Optional · rear |
How to read 315/30 R21
- 315
- Tread width in millimetres
- 30
- Sidewall height, % of width
- R
- Radial construction
- 21
- Wheel diameter in inches
Overall diameter: about 28.4" · Sidewall: 95 mm