Can 225 55 R18 tires substitute 215 55 R18 tires?

Answer 1

Yes, 225, can substitute 215 since it is width of a tire and doesn't play huge role. Also, because we are only talking about tiny difference.

Know that even though you are only talking about a small difference in diameter your speedometer will be off. Another replacement would be a 225/50-18.

Stock Tire - 215/55R18 |>Search Tires Tire 1 - 225/55R18

Section Width: 8.46 in 215 mm |Section Width: 8.85 in 225 mm

Actual Speed: 60 mph 100 km/h |Speedometer1: 59.0 mph 98.4 km/h

Speedometer Difference: 0 |Speedometer Difference: 1.573% too slow

Diameter Difference: 0 |Diameter Difference: 1.56%

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>Search Tires Tire 2 - 225/50R18 |>Search Tires Tire 3 - 235/50R18

Section Width: 8.85 in 225 mm |Section Width: 9.25 in 235 mm

Speedometer1: 61.0 mph 101. km/h |Speedometer1: 60.1 mph 100. km/h

Speedo Difference: 1.706% too fast |Speedo Difference: 0.223% too fast

Diameter Difference: 1.69% |Diameter Difference: 0.22%

Answer 2

Sure, honey, technically you can slap those 225 55 R18 tires on instead of the 215 55 R18 tires. They'll fit on the same 18-inch wheel just fine. Just keep in mind your speedometer might be a tad off and your handling might feel a bit different. But hey, as long as you're not racing against Vin Diesel, you should be good to go.