What does 20550r17 tire mean?

1 Answers
AthenaFitz
07/30/25 2:06am
20550r17 tire represents: 205 refers to the tire width of 205mm; 50 refers to the aspect ratio, where the section height is 50% of the width; the letter r indicates that the tire is a radial tire; 17 refers to the rim diameter of 17 inches. In the identification parameters of tires, there are also some special marks to indicate the type of tire. "x" indicates high-pressure tires; "r" and "z" indicate radial tires. Tires are circular elastic rubber products assembled on various vehicles or machinery for rolling on the ground, usually mounted on metal rims. They support the vehicle body, cushion external impacts, achieve contact with the road surface, and ensure the driving performance of the vehicle.
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