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What is the difference between R19 and R20 tires?

1 Answers

IsabelaRose

07/30/25 10:48am

The differences between tires 245/45R19 and 245/35R20 are: different aspect ratios, different tire thicknesses, and different inner diameters. 1. Different aspect ratios: 245/45R19: The aspect ratio is 45%; 245/35R20: The aspect ratio is 35%. 2. Different tire thicknesses: 245/45R19: The tire thickness is 110.25 cm; 245/35R20: The tire thickness is 85.75 cm. 3. Different inner diameters: 245/45R19: The inner diameter is 19 inches; 245/35R20: The inner diameter is 20 inches. Example explanation of the numbers and letters in a tire model: 225/60R17 99H. 1. 225: Represents the section width, simply understood as the width of the tire tread. 2. 60: Represents the aspect ratio, simply understood as the height of the tire sidewall. 3. R: Represents the tire type code, where R stands for radial tire. 4. 17: Represents the rim diameter, indicating the tire is suitable for 17-inch rims. 5. 99: Represents the tire's load index, indicating the maximum weight the tire can bear. 99 means it can bear a weight of 775 kg. 6. H: Represents the tire's speed rating, indicating the maximum speed the tire can handle. H means it can handle speeds up to 210 km/h.

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