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puncture of the tube by allowing the tire to deform suffi ciently to pinch the inner
tube between the rim and the riding surface.
CAUTION: Pencil type automotive tire gauges can be inaccurate and
should not be relied upon for consistent, accurate pressure readings.
Instead, use a high quality dial gauge.
Ask a bicycle dealer to recommend the best tire pressure for the kind of riding
you will most often do, and have the dealer infl ate your tires to that pressure.
Then, check infl ation as described in Section 1.3 so you'll know how correctly
infl ated tires should look and feel when you don't have access to a gauge. Tires
may need to be brought up to pressure every week or two, so it is important to
check your tire pressures before every ride.
4.5.2 Tire Valves
There are primarily two kinds of bicycle tube valves: The Schraeder Valve and the
Presta Valve. Your Leader™ inner tubes are equipped with Schraeder valves, which
are like the valve on a car tire. To infl ate a Schraeder valve tube, remove the valve
cap and clamp the pump fi tting onto the end of the valve stem. To let air out of
a Schraeder valve, depress the pin in the end of the valve stem with the end of a
key or other appropriate object.
WARNING: When replacing a worn or damaged inner tube, do not
attempt to use an inner tube with a Presta valve. Doing so will cause a cut
or puncture of the tube, resulting in sudden tire defl ation which can cause
you to lose control and fall.
WARNING: We highly recommend that you carry a spare inner tube
when you ride your bike. Patching a tube is an emergency repair. If you do
not apply the patch correctly or apply several patches, the tube can fail,
resulting in possible tube failure, which could cause you to loose control
and fall. Replace a patched tube as soon as possible.
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