BMW Motorrad R 18, Rider'S Manual

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90 MAINTENANCE
WHEELS
Effect of wheel sizes on suspension
control systems
The wheel sizes play an important role
with suspension control systems such
as ABS. The diameter and width of the
wheels stored in the control unit have
particular significance as the basis 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
these systems.
The sensor rings required for wheel speed
detection must also match the installed con-
trol systems and may not be replaced.
If you want to convert your motorcycle to
different wheels, please contact a specialist
workshop, preferably a BMW Motorrad re-
tailer. In some cases the data stored in the
control units must be adapted to the new
wheel sizes.
Removing the front wheel
Place the motorcycle on an auxiliary stand.
Mounting the rear-wheel stand ( 84).
Slacken clamping bolts on the left 1 and
right 2 .
Raise front of motorcycle until the front
wheel can turn freely.
Attaching front wheel stand ( 84).
Remove cable tie 2 .
Remove screws 3 .
Loosen the left-hand brake caliper 1 .
Remove screws 2 .
Loosen the right-hand brake caliper 1 .
Push the brake pads 1 apart slightly by
turning the brake caliper 2 against the
brake disc 3 .