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What is the tire model of Lexus RX300?

1 Answers

DeAlyssa

07/29/25 9:01pm

There are two types of tire models for the Lexus RX300: 235/55R20 and 235/65R18. In 235/55R20, the first number 235 represents the tire width of 235MM, 55 indicates the tire's aspect ratio is 55%, meaning the section height is 55% of the width, and 20 represents the rim diameter of 20 inches. The letter "R" in the middle stands for radial tire. In 235/65R18, the first number 235 represents the tire width of 235MM, 65 indicates the tire's aspect ratio is 65%, meaning the section height is 65% of the width, and 18 represents the rim diameter of 18 inches. The letter "R" in the middle stands for radial tire. The Lexus RX300 is equipped with tires from brands such as Bridgestone, Dunlop, or Michelin, and the spare tire is of non-full size specification. If you want to replace the tires yourself, you can follow the steps below: Take out the spare tire and jack, place the jack under the frame of the tire to be replaced, ensuring the jack touches the metal part of the frame; Raise the jack until it supports the car. The jack should be positioned under the vehicle, check and ensure the jack is at a right angle to the ground; Remove the hub cover, loosen the nuts counterclockwise. Do not completely loosen the nuts, just enough to eliminate resistance. When loosening the nuts for the first time, keeping the tire on the ground ensures that the nuts turn instead of the tire; Turn the nuts counterclockwise until they come off. Repeat this step for all lug nuts, then completely remove the nuts; Place the new tire on the hub, carefully align the tire rim with the wheel bolts, install the lug nuts, and tighten them by hand until all nuts are concealed. At this point, the tire replacement is complete. In addition to the model, the tire also has the following common data marked on it: Tire cord material: Represented by Chinese pinyin, such as M-cotton cord, R-rayon cord, N-nylon cord, G-steel cord, ZG-steel radial cord tire. Speed rating: Indicates the maximum speed at which the tire can carry the specified load under specified conditions. Letters A to Z represent the certified speed ratings of tires from 4.8km/h to 300km/h. Common speed ratings include: Q: 160km/h; H: 210km/h; V: 240km/h; W: 270km/h; Y: 300km/h; Rim specification: Indicates the rim specification compatible with the tire for practical use, such as standard rim 5.00F.

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