At what level of tire wear must replacement occur?
2 Answers
When tire wear reaches 1.6mm, replacement is mandatory. Factors related to wear level: Tire tread wear level - new tires typically have a thickness of around 8mm. When wear reduces this to approximately 1.6mm, the tire should be replaced. The rate of wear is directly influenced by mileage and driving habits. The normal lifespan ranges between 50,000 to 80,000 kilometers. Upon reaching this mileage, regular checks of tire thickness should be considered. Tread aging degree: Tire aging significantly depends on usage duration and environmental conditions, with a standard service life of about 6 years. Harsh environments can accelerate this timeline. Aged tires will exhibit numerous surface cracks. If such signs are observed, immediate replacement is advised even before reaching 6 years, as delayed action may lead to severe blowout risks.
Tires must be replaced when worn down to the wear indicator. With over 30 years of driving experience, I can say that once the tread wears level with those raised bars, it's definitely time for a change—usually when the depth is below 1.6mm, equivalent to a coin being inserted until its full face is visible. Don’t wait until the limit; safety comes first—old tires pose a higher risk of hydroplaning in rain, and braking distance can double. I also check for uneven wear; if one side is significantly more worn, it might indicate misalignment, requiring immediate adjustment. Inspect tires every 3 months by touch or visual check. Severe wear affects handling and increases the risk of blowouts at high speeds. Generally, tires last 4-6 years, but usage frequency matters—city driving wears them faster than off-roading. Timely replacement ensures safety and peace of mind.
