BMW C650GT - Wheels

Wheels
Tire recommendation
For every size of tire,
BMW Motorrad has tested and
approved certain makes as
roadworthy. BMW Motorrad
cannot evaluate the suitability of
other tires, and can therefore
take no responsibility for their
driving safety.
BMW Motorrad recommends
only using the tires tested and
approved by BMW Motorrad.
Detailed information can be
obtained from your authorized
BMW Motorrad retailer or online
at:
bmw-motorrad.com
Affect of wheel size on
ABS
The wheel sizes play a major role
in the ABS system. The diam-
eter and width of the wheels
stored in the control unit have
particular significance as the ba-
sis for all necessary calculations.
A change in these sizes resulting
from conversion to wheels not
installed as standard equipment
can seriously affect the control
efficiency of the system.
The sensor rings required for
wheel speed detection must also
match the system installed and
must not be replaced.
If you want to equip your Maxi-
Scooter with different wheels,
please speak to a specialized
workshop, and preferably a
BMW Motorrad retailer. In some
cases the data stored in the
control unit can be adapted to
the new wheel sizes.
Effect of wheel sizes on
the ASC
The wheel sizes play a major role
in the ASC suspension control
system. The radii of the wheels
in particular are stored in the
control unit as the basis for all
necessary calculations. A change
in these sizes resulting from con-
version to wheels not installed
as standard equipment can seri-
ously affect the control efficiency
of these systems.
ATTENTION
Faults in the ASC caused by
changing tire radii.
The ASC grips despite good ad-
hesion.
Check the wear and pressure
of both tires.
Calibrate the ASC after every
tire change.
If there are an unexpectedly
large number of ASC interven-
tions: Recalibrate the ASC.
ATTENTION
Loss of the adaptation values
for the radii of the tires in the
DME.
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