315/40 R21 tires: vehicles that use this size
315/40 R21 is a factory or optional tire size on 13 models.
| Vehicle | Years | Fitment |
|---|---|---|
| Lamborghini Urus | 2018–2025 | Factory · rear |
| Mercedes Benz GLE43 AMG | 2017–2019 | Factory · rear |
| Mercedes Benz GLE450 AMG | 2016 | Factory · rear |
| Mercedes Benz GLE53 AMG | 2021–2025 | Factory · rear |
| Mercedes Benz GLE63 AMG S | 2017–2025 | Factory · rear |
| Mercedes Benz GLS450 | 2020–2025 | Factory · rear |
| Mercedes Benz GLS580 | 2020–2023 | Factory · rear |
| Porsche Cayenne | 2024–2025 | Factory · rear |
| Mercedes Benz GLE350 | 2020–2025 | Optional · rear |
| Mercedes Benz GLE450 | 2020–2025 | Optional · rear |
| Mercedes Benz GLE450 SUV | 2022–2024 | Optional · rear |
| Mercedes Benz GLE450e | 2024–2025 | Optional · rear |
| Mercedes Benz GLE580 | 2020–2025 | Optional · rear |
How to read 315/40 R21
- 315
- Tread width in millimetres
- 40
- Sidewall height, % of width
- R
- Radial construction
- 21
- Wheel diameter in inches
Overall diameter: about 30.9" · Sidewall: 126 mm