What is the difference between R16 and R18?

1 Answers
MacJameson
07/30/25 7:30am
The following are the differences between R16 and R18 tires: 1. Different tire diameters: R16 is a 16-inch tire, approximately 406.4mm, while R18 is an 18-inch tire, approximately 457.2mm. 2. Different tire widths: The widths are different, one is 205 and the other is 215. The aspect ratios are also different, being 60 and 55 respectively. The wheel diameters are 16 and 18 inches respectively. 3. Different tire applications: The two tires are used on two different types of wheels. The 16-inch tire with a lower aspect ratio is more commonly used for family cars, while the latter is a 17-inch tire with a higher aspect ratio, suitable for some high-end cars.
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