255/35R19 vs 285/30R19

285/30R19 is 7.0 mm shorter than 255/35R19 in overall diameter (−1.1%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 285/30R19 fitted, the speedometer reads 100 km/h when you are doing 98.9 km/h.

Dimensions side by side

	255/35R19	285/30R19
Overall diameter	661 mm (26.0″)	654 mm (25.7″)
Section width	255 mm	285 mm
Sidewall height	89 mm	86 mm
Rim	19″	19″
Revolutions per km	482	487
In stock	55 tires from $151.00	10 tires from $285.00

What changes

Overall diameter: 285/30R19 is 7.0 mm shorter (−1.1%).
Speedometer: reads 100 km/h at an actual 98.9 km/h with 285/30R19.
285/30R19 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 255/35R19

Vehicles that use 285/30R19

See every alternate size for 255/35R19

Frequently asked questions

Can I use 285/30R19 instead of 255/35R19?

Usually, yes: 285/30R19 is within 3% of the overall diameter of 255/35R19 (−1.1%). 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 255/35R19 and 285/30R19?

With 285/30R19 instead of 255/35R19, the speedometer shows 100 km/h when you are actually doing 98.9 km/h.

Which vehicles came with both 255/35R19 and 285/30R19?

Both sizes were original equipment, on different trims or packages, on the 2017–2021, 2023 Mercedes-Benz C 63 S, 2012–2013, 2017–2021 Mercedes-Benz C63, 2010–2020 Mercedes-Benz SL550, 2017–2020 Mercedes-Benz SL450, 2008–2019 Mercedes-Benz SL63, 2010–2018 Mercedes-Benz CLS550.