Quote:
Originally posted by xterrah:
You clip it onto the valve stem and inflate directly through the gauge which allows you to read the tire pressure while inflating.
Regardless of what they call it, it doesn't work well. I have that guage, and it takes 5 times longer to air up a tire through it, as opposed to without it due to how restrictive it is.

Much faster to just air up, eyeball it, and check it a few times.
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