275/50R20 vs 285/40R22
285/40R22 is 4.0 mm taller than 275/50R20 in overall diameter (+0.5%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 285/40R22 fitted, the speedometer reads 100 km/h when you are doing 100.5 km/h.
Dimensions side by side
| 275/50R20 | 285/40R22 | |
|---|---|---|
| Overall diameter | 783 mm (30.8″) | 787 mm (31.0″) |
| Section width | 275 mm | 285 mm |
| Sidewall height | 138 mm | 114 mm |
| Rim | 20″ | 22″ |
| Revolutions per km | 407 | 404 |
| In stock | 33 tires from $183.00 | 18 tires from $399.00 |
What changes
- Overall diameter: 285/40R22 is 4.0 mm taller (+0.5%).
- Speedometer: reads 100 km/h at an actual 100.5 km/h with 285/40R22.
- 285/40R22 is 10 mm wider, so check clearance and the recommended rim width.
- Wheel size changes from 20″ to 22″: you need wheels in the new size.
- Choose a load index at least as high as the one on your door placard.
Vehicles that came with both sizes
Vehicles that use 275/50R20
Vehicles that use 285/40R22
See every alternate size for 275/50R20
Frequently asked questions
Can I use 285/40R22 instead of 275/50R20?
Usually, yes: 285/40R22 is within 3% of the overall diameter of 275/50R20 (+0.5%). Use wheels of the right size and width, match or exceed the original load index, and check clearance at full steering lock.
How much does the speedometer change between 275/50R20 and 285/40R22?
With 285/40R22 instead of 275/50R20, the speedometer shows 100 km/h when you are actually doing 100.5 km/h.
Which vehicles came with both 275/50R20 and 285/40R22?
Both sizes were original equipment, on different trims or packages, on the 2020–2024 Mercedes-Benz GLE450, 2021–2024 Mercedes-Benz GLE53, 2020–2024 Mercedes-Benz GLE580, 2024 Mercedes-Benz GLE450e, 2016–2018, 2020 Bentley Bentayga.