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g1. SCHRADER, PRESTA AND ITALIAN VALVES
Bikes have two different types of valves (IMAGE 1), with different inflation
techniques:
• Italian valves: Remove the valve cap by unscrewing it. To inflate the tire you first
need to let some of the air out by slightly pressing the cap on the valve and then
you need to attach the pump end to the valve but only after removing the valve cap.
Schrader valves (also called American valves): Remove the valve cap, connect an
air pump with a Schrader adaptor to the valve and start inflating. Restore the cap
as it will prevent any dirt or debris from getting inside the valve.
Presta valves (also called French valves): To inflate a tire with a Presta valve, first
you have to remove the valve cap, if present. Presta valves are used for sealing high
pressures and therefore you will require a significant amount of initial pressure to
open them; therefore, you need to unscrew the nut and press on the valve with one
finger to open it. After carrying out this operation you should have released some
of the air in the tire. Start inflating using the Presta valve adaptor. After inflating
the tire, manually fasten he valve nut, placing it on the stem. This has the same
role as the valve cap for Schrader valves.
g2. TIRES INSTALLATION
These instructions are dedicated to standard wheels systems, where the air is
contained by inner tubes. Follow the indications below on how to repair or replace
an inner tube after a tire puncture or simply due to tire wear out.
g3. WHEELS REMOVAL AND INSTALLATION
WILIER.COM
Italian valve Presta valve Schrader valve
Install the first bead Insert the air tubes
in the rim Perforated air tube between
the tire and the rim Air tube between the tire
and the rim
46
FIG. 1
46


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