BMW Motorrad R 1250RT, Rider'S Manual

Page: 186 / 379

180 ENGINEERING DETAILS
What is the design baseline
for Integral ABS?
Within the limits im-
posed by physics, the
BMW Motorrad ABS ensures
directional stability on any
surface.
At speeds above 4 km/h,
within the limits im-
posed by physics the
BMW Motorrad ABS can
ensure directional stability
on any surface. Limitations
inherent to the design principle
mean that at lower speeds the
BMW Motorrad ABS cannot
provide optimum assistance on
all surfaces.
The system is not optimised for
special requirements that ap-
ply under extreme competitive
conditions off-road or on the
track.
Special situations
The speeds of the front and
rear wheels are compared
as one means of detecting a
wheel's incipient tendency to
lock. If the system registers
implausible values for a lengthy
period the ABS function is
deactivated for safety reasons
and an ABS fault message
is issued. Self-diagnosis has
to complete before fault
messages can be issued.
In addition to problems with
the BMW Motorrad ABS, ex-
ceptional riding conditions can
lead to a fault message being
issued:
Heating up with the motor-
cycle on the centre stand or
an auxiliary stand, engine id-
ling or with a gear engaged.
Rear wheel locked by the
engine brake for a lengthy
period, for example while des-
cending on a loose or slippery
surface.
If a fault message is issued on
account of exceptional riding
conditions, you can reactivate
the ABS function by switching
the ignition off and on again.
What significance devolves on
regular servicing?
WARNING
Brake system not regularly
serviced.
Risk of accident
In order to ensure that the
ABS is always maintained
in optimum condition, it is
essential for you to comply
strictly with the specified
inspection intervals.