Do I need to file for changing tire size?
2 Answers
Modifying the size of tires requires filing with the vehicle authorities. Here are the precautions for modifying wheel rims: Size specifications: It is not advisable to modify wheel rims to an excessively wide size. The larger the rim, the thinner the tire needs to be to maintain the vehicle's aspect ratio, which makes the ride more sensitive to road conditions and significantly reduces passenger comfort when driving over uneven surfaces. Only rims of the same size can pass the annual inspection; non-standard sizes will fail the inspection. Registration is not required. The newly implemented "Motor Vehicle Inspection Work Regulations" classify rim modifications as legal modifications that do not require registration. As long as the tire size remains unchanged, the vehicle can pass the annual inspection. Relevant regulations: Article 16, Item 1 of the "Road Traffic Safety Law of the People's Republic of China" stipulates that no unit or individual may assemble a motor vehicle or alter its registered structure, construction, or characteristics without authorization. Without permission from the public security traffic management department, modifying the chassis, engine, suspension, transmission system, steering system, tire rims, lights, body color, or exterior structure of a motor vehicle, or altering technical data that does not match the data announced by the State Council's motor vehicle product authority, constitutes an illegal modification.
Last year, I upgraded my car tires to a larger size, thinking it would improve both appearance and performance. However, I noticed unstable handling and a significant increase in fuel consumption while driving. After discussing with some car enthusiast friends, they reminded me that altering tire size beyond the factory specifications requires filing with the local vehicle management office under most regional traffic regulations in China. I then consulted the local authorities, prepared the necessary vehicle documents and inspection reports, paid a small fee, and completed the filing process in half a day. Later, my annual inspection went smoothly, saving me a lot of trouble. Without this filing, I could have faced fines, inspection issues, or even worse, problems with insurance claims. I really should have checked the regulations beforehand to ensure legality and safety. Remember, excessive size modifications can affect driving dynamics, and filing is the basic safeguard.
