Tyres - APRILIA ETX 125 - 1998 Manual

TYRES

This vehicle is provided with tyres with in-
ner tube.
a
Periodically check the tyre infla-
tion pressure at room tempera-
ture, see p. 68 (TECHNICAL DA-
TA).
If the tyres are hot, the measurement is
not correct.
Carry out the measurement especially
before and after long rides.
If the inflation pressure is too high, the
ground unevenness cannot be damp-
ened and is therefore transmitted to the
handlebar, thus compromising the driv-
ing comfort and reducing the road hold-
ing during turns.
If, on the contrary, the inflation pres-
sure is too low, the tyre sides are under
greater stress and the tyre itself may
slip on the rim or it may become loose,
with consequent loss of control of the
vehicle.
In case of sudden braking the tyres
could even get out of the rims.
Further, the vehicle could skid while
turning.
Check the surface and the wear of the
tyres, since tyres in bad conditions can
impair both the grip and the controlla-
bility of the vehicle.
Change the tyre when it is worn out or
in case of puncture on the tread side, if
the puncture is larger than 5 mm.
After repairing a tyre, have the wheels
balanced. Use only tyres in the size
suggested by aprilia, see p. 68 (TECH-
NICAL DATA).
Make sure that the tyres always have
their valve sealing caps on, to prevent
them from suddenly going flat.
Change, repair, maintenance and bal-
ancing operations are very important
and should be carried out by qualified
technicians with appropriate tools.
For this reason, it is advisable to have
the above mentioned operations carried
out by an aprilia Official Dealer or by a
qualified tyre repairer.
If the tyres are new, they may still be
covered with a slippery film: drive care-
fully for the first miles.
Do not oil the tyres with unsuitable flu-
ids.
If the tyres are old, even if not complete-
ly worn out, they may become hard and
may not ensure good road holding.
In this case, replace them.
use and maintenance ETX 125 27