If you have roadside assistance it may take a few hours but they will bring you a tire and change it for you. Your coach uses a common size tire so there should be minimal delay. Replace your ties every 5 or 6 years, carry a plug kit and a compressor and your chances of needing a spare are pretty slim. I have been driving for more than half of a century and I’ve NEVER had to change a tire on the side of the road.
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