The filtered valve cores won't fit my 90 °valve stems. What do I do?

A: You only have two choices, as there is no short-style filtered valve core manufacturered.

• Before checking air pressure, give the valve stem a short burst of air to blow any beads behind the valve core back into the tire. Having the valve stem at the bottom of the tire also helps.
• Replace the 90 °valve stems with an automotive style, see last question.