Corghi Artiglio Master 28, Operator'S Manual

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146
Artiglio Master 28
Operator’s manual
13 - Shoulder This is the most external part of the
tread, located between the corner and the start of
the sidewall.
14 - Bead . This is the part that joins the tyre to the
rim. The bead point (a) is the inner corner. The spur
(b) is the inner 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 long period of time, an air chamber is used.
The valve for inserting, maintaining, controlling and
restoring pressurised air is, in this case, part of the
chamber.
Tubeless tyres. Tubeless tyres consist of a tyre with
inner sidewall lined with a thin layer of special
impermeable rubber, called a
liner
. This liner helps
to maintain air pressure in the casing. This type of
tyres must be mounted on specific rims, on which
the valve is fixed directly.
II - Rim (Wheel). The rim is the rigid metal part which
connects the vehicle hub to the tyre, on a fixed but
non-permanent basis.
Rim profile. The rim profile is the shape of the section
in contact with the tyre. It is made with different
geometric shapes that serve to ensure: easy
assembly of the tyre (inserting the bead into the
channel); safety on the move, in terms of anchoring
the bead in its seat.
When observing a section of the rim, it is possible
to identify different parts that compose it: a) rim
width – b) shoulder height – c) tubeless anchoring
(HUMP) – d) valve hole – e) ventilation opening –
f) offset – g) central hole diameter – h) connection
hole centre to centre distance i) keying diameter – j)
rim channel.
III - Air chamber (tube type tyres). The air chamber
is a closed ring-like rubber structure with a valve,
which contains pressurised air.
f
g h
i
a
c
b
d
e
j