i did the same thing. left the spare at home and carry a repair kit but just didn't have that sense of security without the spare so i put a carrier on. if you have a blowout the tow truck is going to charge big bucks to flatbed and aaa you will be on the side of the road for hours. the tire carrier is worth every penny when it's a holiday and you are sitting on the side of the highway because you blew a tire and it's 22 degrees out.
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