BMW Motorrad C 400GT, Rider'S Manual

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your Scooter, it is very import-
ant to consult a specialist work-
shop beforehand, preferably an
authorised BMW Motorrad Re-
tailer. In some cases, the data
programmed into the control unit
can be changed to suit the new
wheel sizes.
Effect of wheel size on the
ASC
The wheel sizes play an essential
role with the suspension con-
trol system ASC. In particular,
the radii of the wheels are stored
in the control unit as a basis for
all required calculations. Any
change in these influencing vari-
ables, caused for example by
a switch to wheels other than
those installed ex-works, can
have serious effects on the per-
formance of the control systems.
ATTENTION
Faults of the ASC due to
changing tyre radii
ASC intervenes despite good
grip
Check both tyres for wear and
check the tyre pressures.
Always calibrate the ASC after
changing a tyre or tyres.
If ASC interventions are unex-
pectedly frequent: Re-calibrate
the ASC.
ATTENTION
Loss of the adaptation values
for the tyre radii in the Digital
Motor Electronics
Risk of falling
Always re-calibrate the ASC
after every software update.
Removing front wheel
Mask off the parts of the wheel
rim that could be scratched in
the process of removing the
brake calipers.
Release the brake line from the
holders
1 .
ATTENTION
Unwanted inward movement
of the brake pads
Component damage on attempt
to install the brake caliper or be-
cause brake pads have to be
forced apart
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z Maintenance