What is the maximum driving speed for a spare tire?

[OTheo]

Non-full-size spare tires should not exceed 80 kilometers per hour when driving on highways. Spare tires cannot be used as regular tires because they have a lower speed rating, making them unsuitable for high-speed driving. Many spare tires are also narrower than standard tires, so they should only be used in emergencies. Here are some precautions for tire usage: 1. Regular replacement: Tires are rubber products, and rubber deteriorates over time, so tires need to be replaced periodically. Normally, tires can be used for four years after installation, so it is recommended to replace them every four years. 2. Shelf life: When purchasing new tires, always check the production date because tires have a shelf life. Typically, unused tires have a shelf life of three years. If the tires have been in storage for more than three years, they should not be purchased. 3. Dynamic balance test: After installing new tires, it is essential to perform a dynamic balance test on each wheel to prevent abnormal vibrations during high-speed driving.