Shop talk
When mounting new tires, always install new valve
Stems. The life of tire rubber is close to the life of the
Valve stem rubber. Most stems are the snap-in type.
These are installed from inside the wheel with a
Pulling tool. Make sure that the stem is properly
seated. Another style of stem has a retaining nut that
must be removed when pulling off the old stem. Be
sure to completely tighten the new nut.