What are the requirements for vehicle inspection tires?
3 Answers
Vehicle tires should meet the following requirements: Model requirements: Tires on both sides of the same axle should be of the same model and tread pattern. Tire bolts and axle bolts should be complete and securely fastened. The tire specifications should match the motor vehicle product announcement and the motor vehicle factory certificate (for in-use vehicle inspections, it should match the motor vehicle registration information). Wear condition requirements: The tire tread and sidewall should not have cracks or cuts exceeding 25mm in length or deep enough to expose the tire cord layer, nor any other defects, abnormal wear, or deformations that affect usage. Tread depth requirements: The tread depth of passenger cars, motorcycles, and trailer tires should be no less than 1.6mm. The tread depth of steering tires for other motor vehicles should be no less than 3.2mm. The tread depth of other tires should be no less than 1.6mm, and the tire tread wear indicators should be visible.
I just had my vehicle inspected a few days ago, and there were quite a few requirements for the tires. The technician emphasized that the tread depth must not be less than 1.6mm. I measured it myself with a small tool—otherwise, it could easily skid in rainy weather. The tire surface must not have cracks, bulges, or cuts, as these minor damages could lead to a blowout risk. Tire pressure is also crucial and must be adjusted according to the recommended values on the door sticker—too high or too low affects safety and increases fuel consumption. The rims need to be checked for deformation or rust, and the spare tire must also be intact and usable. I usually measure the tread depth monthly using a coin to check the depth, so I don’t run into issues during inspection and waste time. Additionally, the tire size must match the original factory specifications—illegal modifications with larger rims are not allowed. I recommend that car owners perform these checks regularly for a safer drive.
After decades of driving, I've summarized that tire inspection mainly involves several aspects: the tread depth must be at least 1.6mm, as it's crucial for grip on wet roads; there should be no visible damage like bulges or cracks, otherwise the risk on highways doubles; tire pressure must precisely match the manufacturer's standards, as significant deviations can increase braking distance; wheels must not be misaligned, and tires should be installed symmetrically when replaced. I also make sure the spare tire is properly inflated and regularly check it to avoid trouble. Vehicle inspection ensures safety—I've seen many accidents start from small issues, so I've developed a habit of checking my tires every season. Tires are the 'feet' of the car, and maintaining them well saves both peace of mind and fuel.
