Corghi A 2030 Manuel D'utilisation page 131

non-permanent basis.
a
c
b
Rim profile. The rim profile is the shape of the section in
d
contact with the tyre. It is made with different geometric
e
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
i
g h
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
f
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
j
contains pressurised air.
Valve. The valve is a mechanical device to inflate/
deflate the tyre and maintain air pressure inside the
air chamber (or tyre in the case of tubeless tyres). It
consists of three elements: the valve closing cap (a)
c
a
b
(to protect the internal mechanism from dust and
guarantee air tightness), an internal mechanism (b)
and the base (c) (the outer lining).
Tubeless Inflator. Inflation system that makes easier
the inflation of tubeless tyres.
Bead insertion. Operation which takes place during
inflation and ensures perfect centring between the
bead and the rim edge.
Bead pressing clamp. A tool intended for use when
mounting the top bead. It is positioned so that it
engages the shoulder of the rim and maintains the
upper tyre bead inside the well. It is generally used
for mounting low profile tyres.
Discharge regulator. Union allowing regulation of the
air flow.
Bead breaking. Operation used to detach the bead
EN
from the rim edge.
A 2030 - A 2025 - A 2022 - A 2018 - A 224 A - A 224 Operator's manual 131