43
It is best to ask your specialist
retailer about which air pump is
suitable for your valve.
20. Dealing with a flat tyre
19.2 Inner tubes
The inner tube is the part of the bike which is
inflated with air. This is carried out via a valve.
Three different types of valve are used:
You require the following equipment for repair-
ing a flat tyre:
• Tyre lever, plastic if possible
• Patch
• Rubber solution (patch adhesive)
• Sandpaper
• Possibly a replacement inner tube
• Possibly a replacement valve
• 15 mm open-ended spanner (if your FLYER
does not have any quick releases)
• A suitable air pump for the specific valve
It is best to first remove the wheel with the
flat tyre. To do this, remove or open the brakes
first. The specific process is dependent on the
type of brake system installed.
A valve cap is used in each of the three valve
types for preventing dirt from entering the
valve.
Use the following method to pump up an in-
ner tube fitted with a Presta or Sclaverand valve:
• Unscrew the valve cap by turning it anti-
clockwise.
• Open the knurled nut by turning it anti-
clockwise.
Use the following method to pump up an inner
tube fitted with a Dunlop or Woods valve:
• Unscrew the valve cap by turning it anti-
clockwise.
• Use a suitable air pump to inflate the inner
tube.
• Screw the valve cap onto the valve clock-
wise.
Please read the Brakes chapter
before opening the brakes. Do-
ing this incorrectly could dam-
age the braking system and cause an
accident.
If you remove a wheel from a FLYER
with disc brakes, ensure that you place a
spacer in the brake caliper where the disc
usually fits. This ensures that the brake pis-
tons are held in place and that no air can
enter the system. Do not apply the brake
lever until the wheel has been re-fitted.
Schrader or
American valve
Dunlop or W
oods valve
The Presta or Sclaverand valve
• The valve is open if air escapes when you
place a small amount of pressure on the
knurled nut.
• Use a suitable air pump to inflate the inner
tube.
• Close the valve by turning the knurled nut
clockwise.
• Screw the valve cap onto the valve clock-
wise.
Summary of Contents for Flyer
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