285/40R23 vs 325/35R23
325/35R23 is 0.0 mm taller than 285/40R23 in overall diameter (±0.0%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 325/35R23 fitted, the speedometer reads 100 km/h when you are doing 100.0 km/h.
Dimensions side by side
| 285/40R23 | 325/35R23 | |
|---|---|---|
| Overall diameter | 812 mm (32.0″) | 812 mm (32.0″) |
| Section width | 285 mm | 325 mm |
| Sidewall height | 114 mm | 114 mm |
| Rim | 23″ | 23″ |
| Revolutions per km | 392 | 392 |
| In stock | 4 tires from $676.00 | 3 tires from $786.00 |
What changes
- Overall diameter: 325/35R23 is 0.0 mm taller (±0.0%).
- Speedometer: reads 100 km/h at an actual 100.0 km/h with 325/35R23.
- 325/35R23 is 40 mm wider, so check clearance and the recommended rim width.
- Choose a load index at least as high as the one on your door placard.
Vehicles that came with both sizes
Vehicles that use 285/40R23
Vehicles that use 325/35R23
See every alternate size for 285/40R23
Frequently asked questions
Can I use 325/35R23 instead of 285/40R23?
Usually, yes: 325/35R23 is within 3% of the overall diameter of 285/40R23 (±0.0%). 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 285/40R23 and 325/35R23?
With 325/35R23 instead of 285/40R23, the speedometer shows 100 km/h when you are actually doing 100.0 km/h.
Which vehicles came with both 285/40R23 and 325/35R23?
Both sizes were original equipment, on different trims or packages, on the 2020–2024 Mercedes-Benz GLS450, 2020–2024 Mercedes-Benz GLS580, 2021–2024 Mercedes-Benz GLS63.