Corghi Artiglio 500 Manuel D'utilisation page 67

5 - Belt. This is a non-flexible circumferential structure com-
prising cross-plys at very low angles, positioned below the
tread, to stabilise the casing in the footprint area.
6 - Centring band. This is a small marking which indicates
the circumference of the top part of the bead and is used
as a reference to check exact tyre centring on the rim after
mounting.
7 - Protective band. This is a circumferential marking in the area
of the sidewall which is more exposed to accidental rubbing.
8 - Sidewall. This is the area between the shoulder and the
centring band. It consists of a more or less thin layer of
rubber, which protects the casing plys from lateral impact.
9 - Liner. This is a vulcanised, compound sheet, imperme-
able to air, inside tubeless tyres.
10 - Filling. This is a generally triangular rubber profile,
above the side ring; it provides rigidity for the bead and
gradually offsets the abrupt uneven thickness caused by
the side ring.
11 - Flap. This is the part of the casing ply around the side
ring and placed against the casing, to secure the ply and
prevent it from slipping.
12 - Foot. This is the innermost layer of the tread in contact
with the belt, or if the latter is not present (conventional
tyre) with the last casing ply.
13 - Shoulder. This is the outer part of the tread, between
the corner and start of the sidewall.
14 - Bead. This is the part joining the tyre to the rim. The
bead point (a) is the inner corner. The spur (b) is the outer
part of the bead. The base (c) is the area resting against
the rim. The groove (d) is the concave part against which
the rim shoulder rests.
Tube type tyres. As a tyre has to contain pressurised air
for a fairly long time, an air chamber is used. The valve for
adding air and maintaining, controlling and restoring air
pressure is part of the chamber in this case.
Tubeless tyres. Tubeless tyres consist of a tyre with inner
sidewall lined with a thin layer of special impermeable
rubber, called liner. This liner helps to maintain air pres-
sure in the casing. This kind of tyre must be mounted on a
Artiglio 500 User Manual
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c
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a
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