I'm too lazy to change the tire when it's flat. So far with the 7-9 flats that I have had over the past 20 years on the Z I have been lucky enough to be able to call a wrecker with an air compressor. He comes out and we fill the tire to the max pressure, I pay him $10-20 bucks for his time and I drive to the closest tire shop and let them remove and fix the tire.