29
use and maintenance RS 50
Otherwise:
◆
Top up with coolant, see p. 75 (LUBRI-
CANT CHART) until the coolant level ap-
proximately reaches the diameter reduc-
tion point (3). Do not exceed this level,
otherwise the coolant will flow out while
the engine is running.
◆
Put back the filling plug (1).
CAUTION
In case of excessive consumption of
coolant and in case the tank remains
empty, make sure that there are no
leaks in the circuit.
Have it repaired by an aprilia Official
Dealer.
TYRES
This vehicle is provided with tubeless tyres.
WARNING
Periodically check the tyre inflation
pressure at room temperature, see p. 72
(TECHNICAL DATA).
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 pressure
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. 72 (TECHNI-
CAL 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 fluids.
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.
MINIMUM TREAD DEPTH LIMIT
front: ............................................... 2 mm
rear: ................................................ 2 mm
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