What does 225/45r18 mean?

1 Answers
VanSabrina
07/25/25 4:19pm
225/45r18 meaning introduction: 225/45r18 refers to a tire with a tread width of 225mm, a section aspect ratio of 0.45, 'r' indicating radial construction, and a rim diameter of 18 inches. The functions of tires are as follows: 1. Transmit driving force, braking force, and steering force to achieve vehicle control; 2. Support vehicle load; 3. Reduce and absorb vibrations and impact forces during driving, avoiding severe vibrations that could damage vehicle components. Tire maintenance methods include: 1. Regularly clean stones from tire treads; 2. Minimize exposure to direct sunlight; 3. Promptly check tire pressure; 4. Pay attention to suspension maintenance; 5. Regularly inspect front wheel alignment; 6. Be mindful of driving habits.
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