I just carry a small compressor with me. I have not used the spare at all on the last two cars that I have had. They were driven a total of about 385,00 miles and both had a few punctures. The were all slow leaks I drove one tire with a nail in it over 2,000 miles just filling it up with air a few times. Tires today are very good and usually only get slow leaks. I have never have broken a wheel.

Chuck