Is the spare tire the same as the regular tire in a new car?
2 Answers
Car tires are different from spare tires. Generally, the size of a spare tire is smaller than that of a regular tire, and its aspect ratio, width, or diameter differs from those of the tires in normal use. The purpose is to distinguish the spare tire from the regular tires, thereby reminding and encouraging the car owner to replace the spare tire with a regular one as soon as possible. Types of car spare tires: Spare tires are categorized into full-size spare tires and non-full-size spare tires. The biggest difference between them is that non-full-size spare tires have smaller specifications and dimensions compared to full-size spare tires. Precautions: Spare tires should not be used for a long time. They are not meant to replace regular tires and be used extensively. Due to their infrequent use, they have less friction with the ground. If a spare tire is installed, the different friction coefficients, ground adhesion levels, and air pressures among the four tires can have certain impacts on the vehicle's braking system, steering system, and suspension system if used for an extended period, posing significant safety hazards.
I usually pay attention to car details, and the spare tire of a new car is often different from the regular tires. Most cars come with a temporary spare tire, which is smaller in size to save space and cost. This type of spare tire has limitations—it can only be driven at speeds up to 80 km/h and is not suitable for long-term use, as it can be unsafe. I recommend checking the spare tire pressure immediately after buying a new car. If it's too low, it could blow out, which is even more dangerous. Remember, the spare tire is not a permanent solution—it's only for emergencies. After swapping it on, head to a repair shop as soon as possible. Driving long-term with a spare tire can also affect the balance of the suspension system. Last time I had a flat, I used the spare tire and felt unstable after just a few dozen kilometers. In short, safety comes first—don’t overlook this small detail when you get a new car, as it can help you avoid trouble in critical moments.
