What is the lifespan of tires in kilometers or years?

[Francis]

Tire lifespan ranges from 3 to 5 years or 60,000 to 80,000 kilometers. The actual lifespan depends on factors such as climate, road conditions, driving habits, installation, and maintenance. Tires should be replaced when the tread depth wears down to 1.6 millimeters, which is indicated by tread wear indicators. The functions of tires include: 1. Transmitting driving force, braking force, and steering force to enable vehicle operation; 2. Supporting vehicle load; 3. Absorbing vibrations and impacts during driving to prevent damage to vehicle components. Situations requiring tire replacement: 1. Tire deformation; 2. Severe damage to the tire body; 3. Excessive tread wear; 4. Bead damage; 5. Bulges or cracks on the tire sidewall; 6. Damage from driving underinflated; 7. Tires patched more than three times; 8. Severe wear and aging with peeling; 9. Chemical corrosion.