How many kilometers can a car spare tire run?

[Byron]

Car spare tires can run for 50 kilometers. Here is some introduction about car spare tires: 1. Car: The total mileage of a non-full-size spare tire should not exceed 50 kilometers. Car spare tires are generally divided into full-size spare tires and non-full-size spare tires. Full-size spare tires are the same size as ordinary tires and have no mileage restrictions, but they must be driven at a lower speed. The diameter and width of this type of spare tire are slightly smaller than the four tires, so it can only be used as a temporary replacement, and the driving distance cannot exceed 100km. Therefore, non-full-size spare tires cannot be used for a long time. 2. Full-size spare tire: The size of a full-size spare tire is exactly the same as the four original tires of the car, and it can replace any tire that is temporarily or already unusable. However, the cost is higher, and it takes up more space, and it cannot be used for a long time.