Probably a dumb question, but to air down, do you just push the needle and keep checking the PSI or does the air compressor have a setting to air down?
Not a dumb question. I use deflators. Far easier because you are 1) deflating all four tires at once and 2) they stop deflating at the correct pressure (no check, release air, check again, rinse, lather repeat). Mine are Stauns: Staun Tire Deflators, Automatically Deflate, Staun Valve, Automatic Tire Deflators, Preset Pressure, Reduce Tire Pressure
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