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Why Are Spare Tires Smaller Than Regular Tires?

Flat tires are sometimes unavoidable, no matter how much you care for your tires. A simple nail can do the trick. As you try to calm yourself and pop the trunk open to reach for the spare, you may notice that it is much smaller than your regular tires. Most vehicles come with fairly thin, fragile spares, and they're sometimes referred to as a 'donut.' This may have you wondering, "why".


The first reason why the spare tires are smaller is to maximize trunk space. Donut tires have a shallow tread with a narrow width. The material for the spare is also lighter, making it easier for the average individual to carry and install.


If a spare tire were the same size as a regular tire, it would add excess weight to your car. But the primary reason why donut tires are small is that they are just a temporary method. Spares are only supposed to get you to a repair shop safely and last for only about 100 miles. 


The smaller-sized tires also make it more cost-efficient for the original manufacturer to produce. As a result, it can keep the actual price of the vehicle down.  


Driving with underinflated tires or a flat tire can negatively impact handling and alignment. As mentioned previously, a spare tire is only a temporary fix until someone can install a regular tire. For the best quality tire service and maintenance in Charlotte, NC, please come by Woodie's Auto Service & Repair Services. 

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