What are the tire requirements for the 2021 annual inspection?
2 Answers
2021 annual vehicle inspection requirements for tires are: tires must not be excessively worn; tire tread patterns must be consistent; all four tires should have matching tread patterns, or at least the front two or rear two should match, but left and right tread patterns must not differ. The functions of tires are: to transmit driving force, braking force, and steering force for vehicle operation; to support vehicle loads; to reduce and absorb vibrations and impacts during driving. Tire maintenance methods include: regularly removing stones stuck in tire grooves; minimizing exposure to direct sunlight; promptly checking tire pressure; paying attention to suspension maintenance; regularly inspecting front wheel alignment; adopting careful driving habits by choosing smooth road surfaces and avoiding objects that could puncture or scratch tires, as well as chemical spills that may corrode tires.
During my annual inspection in 2021, the tires were thoroughly checked. According to the regulations at that time, the tread depth had to be at least 1.6 millimeters. Anything below that would require replacement to prevent skidding accidents in rainy conditions. They also checked for cracks, bulges, or deformations—even minor damages like these could lead to a high-speed blowout. The tire pressure had to be just right, neither too high nor too low, as it could affect braking performance. The inspection station used professional tools to measure, but it was recommended to do a simple check beforehand—like inserting a one-yuan coin into the tread. If the edge of the 'Yuan' character was visible, it meant the depth was insufficient. Safety comes first; don’t wait until the inspection to panic. Well-maintained tires make the car run much more smoothly.
