What is the standard for tire tread replacement?
2 Answers
Tire tread replacement standard is that when the tread depth reaches the limit value of 1.6mm, it must be replaced. Tire tread depth standards: Tread depth greater than 3.5mm is in good condition, 2.5~3.5mm is normal condition, less than 2.5mm indicates the need for replacement, and when it reaches the limit value of 1.6mm, it must be replaced. Methods to check tire tread: Check using the tread wear indicator blocks on the tire itself. When the raised portions on both sides of the groove are flush with the indicator blocks, the tire needs to be replaced promptly; or use a tire tread depth gauge to check.
Don't delay replacing tires when the tread wears down—it's a major safety issue. Once I was driving in heavy rain, and the road was as slippery as an ice rink. I lost control of the car and nearly had an accident. Later, upon inspection, I found my tire tread was worn too shallow to grip the road properly. As a standard, tires should be replaced when the tread depth falls below 1.6mm. Many new tires start with around 9mm of tread, and once they wear down to the tread wear indicators, it's time for a change. I usually test mine by inserting a coin into the tread—if the edge of the coin isn't visible, it's time to replace them. Tires wear faster during summer highway driving, and aging cracks are also a concern. Never procrastinate—repair costs after an accident can far exceed the price of new tires, not to mention the risk of injury. I recommend checking tread depth annually, especially before the rainy season, to ensure safe driving in wet conditions. Don’t learn the hard way like I did.
