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    3. Damage


 These can cause problems such as a flat tire.

Early tire replacement is recommended since damage or checking can cause problems.


Side cut

(general exterior damage)


(friction between tire and car body, etc.)


Main causes of damage

  • Coming into contact with the curb or other obstacles on the road.
  • Foreign objects such as rocks lodged in the tire.



(ozone crack)

Tread tear

(groove crack)


Main causes of checking

  • Excessive bending and stretching due to insufficient air pressure, etc.
  • Concentration of stress on certain parts due to damage, etc.
  • Degradation caused by UV rays, heat, etc.
  • Overload and other causes due to running on curbs, etc.