Which cars use 255/40R21 tyres?
255/40R21 is a factory tyre size on 9 car models in our data. Its overall diameter is about 737.4 mm.
Size details
- Overall diameter
- 737.4 mm
- Section width
- 255 mm
- Sidewall height
- 102.0 mm
- Rim diameter
- 21″
- Rolling circumference
- 2,317 mm
- Revolutions per km
- 432
Values are calculated from the size. Real tyres differ by a few millimetres between brands.
Cars using 255/40R21
| Car | Axle | Versions |
|---|---|---|
| Volkswagen ID.4 | Rear only | 1 |
| Skoda Enyaq | Rear only | 1 |
| BMW 7 Serisi | Front only | 1 |
| BMW X3 | Front only | 5 |
| BMW i7 | Front only | 1 |
| BMW iX3 | Front and rear | 6 |
| Audi Q4 e-tron | Rear only | 1 |
| Audi Q5 | Front and rear | 1 |
| Volvo XC60 | Front and rear | 2 |
Sizes that can replace 255/40R21
This is a calculation, not a factory approval. The list shows sizes whose overall diameter is within ±3%. Check your door label, certificate of conformity (CoC) or tyre shop before fitting.
255/45R20+0.0%255/35R22−0.0%
255/30R23−0.0%
285/40R20−0.2%285/35R21−0.6%235/50R20+0.8%265/30R23+0.8%
245/30R23−0.8%
265/35R22+0.9%245/35R22−1.0%