![]() ![]() But run-flats can contribute to a firmer ride in general, and they are often expensive to replace and difficult to find in a hurry. When punctured, they provide extended mobility in a “limp-home” mode at reduced speed and for a limited distance, much like a temporary spare tire-without the need to perform the dirty task of changing the tire. (If you have a spare tire, be sure to check and adjust its air pressure regularly, or it may be flat when needed.) Just 9 percent came with a full-sized spare tire-the only solution that allows you to continue your travels, without stopping at a service center for a professional repair or new tire. Reviewing records on Consumer Reports test cars going back to the 2017 model year revealed that about 62 percent came with a temporary spare, 15 percent had a sealant kit, and 11 percent were equipped with run-flat tires and no spare. ![]() These days, it is important for drivers to have a plan for dealing with a flat tire before it happens. This is a shame, because they have great promise, and the alternatives bring real compromises. But our testing reveals that not all tire repair kits work as expected. ![]() These typically cost around $10 for a pressurized can to around $80 for a full kit with a portable tire inflator, making them an attractive addition to an emergency kit that is kept in the car. For many motorists, the best tools to fix an ailing tire are a phone, roadside assistance membership, and a spare tire or tire sealant kit, which can be used to fix small holes and refill the deflated tire. ![]() Adding to the drama is the reality that many recent cars don’t even come with a spare tire. A flat tire is always inconvenient and often dangerous, risking loss of control while driving or collision while performing a roadside repair. ![]()
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