255/40R19 vs 285/35R19
285/35R19 is 5.0 mm shorter than 255/40R19 in overall diameter (−0.7%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 285/35R19 fitted, the speedometer reads 100 km/h when you are doing 99.3 km/h.
Dimensions side by side
| 255/40R19 | 285/35R19 | |
|---|---|---|
| Overall diameter | 687 mm (27.0″) | 682 mm (26.9″) |
| Section width | 255 mm | 285 mm |
| Sidewall height | 102 mm | 100 mm |
| Rim | 19″ | 19″ |
| Revolutions per km | 463 | 467 |
| In stock | 35 tires from $154.00 | 5 tires from $370.00 |
What changes
- Overall diameter: 285/35R19 is 5.0 mm shorter (−0.7%).
- Speedometer: reads 100 km/h at an actual 99.3 km/h with 285/35R19.
- 285/35R19 is 30 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 255/40R19
Vehicles that use 285/35R19
See every alternate size for 255/40R19
Frequently asked questions
Can I use 285/35R19 instead of 255/40R19?
Usually, yes: 285/35R19 is within 3% of the overall diameter of 255/40R19 (−0.7%). 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 255/40R19 and 285/35R19?
With 285/35R19 instead of 255/40R19, the speedometer shows 100 km/h when you are actually doing 99.3 km/h.
Which vehicles came with both 255/40R19 and 285/35R19?
Both sizes were original equipment, on different trims or packages, on the 2024 Nissan Z, 2009–2015 Cadillac CTS-V, 2009–2015 Cadillac CTS, 2010–2013 Ford Mustang, 2006–2010 BMW M6, 2005–2010 BMW M5.