Operating Instructions

172 TECHNOLOGY IN DETAIL
From a speed greater than
2.5 mph (4 km/h), the
BMW Motorrad ABS can
ensure riding stability on any
surface within the limits of
riding physics. At lower speeds,
the BMW Motorrad ABS cannot
provide optimal support on
all surfaces due to system
limitations.
The system is not optimized
for the special conditions en-
countered under the extreme
conditions of competitive off-
road and racetrack use.
Special situations
To detect the tendency of the
wheels to lock up, the speeds
of the front and rear wheel are
compared. If implausible values
are detected over an extended
period of time, the ABS func-
tion is deactivated for safety
reasons and an ABS fault is in-
dicated. A self-diagnosis must
be completed before the fault
memory entry will be displayed.
Apart from problems with the
BMW Motorrad ABS, unusual
riding conditions can also
cause a fault memory entry to
be generated:
Warm-up on the center or
auxiliary stand in neutral or
with gear engaged.
Rear wheel locked-up for a
longer period of time by en-
gine brake, e.g. when riding
downhill on slippery surfaces.
Should a fault memory entry
occur due to an unusual riding
condition, the ABS function can
be reactivated by switching the
ignition off and then on again.
How important is regular
preventive maintenance?
WARNING
Failure to have maintenance
performed on the brake sys-
tem regularly.
Accident hazard
To ensure that the ABS is in
a properly maintained condi-
tion, it is vital that the spec-
ified service intervals be ob-
served.
Reserves for safety
The potentially shorter
stopping distances which
BMW Motorrad fully integral
ABS Pro permits must not
be used as an excuse for a
careless riding style. ABS is
primarily a means of ensuring