Rear Wheel Lift; What Is The Design Baseline For Bmw Motorrad Abs?; Special Situations; Rear Wheel Lift Due To Severe Braking - BMW F 750 GS Rider's Manual

Rear wheel lift

Under very severe and sudden
deceleration, however, under
certain circumstances it is pos-
sible that the BMW Motorrad
ABS will be unable to prevent
the rear wheel from lifting clear
of the ground. If this happens
the outcome can be a highsid-
ing situation in which the mo-
torcycle can flip over.
WARNING
Rear wheel lift due to severe
braking
Risk of falling
When you brake sharply,
bear in mind that ABS con-
trol cannot always be re-
lied on to prevent the rear
wheel from lifting clear of
the ground.
What is the design baseline
for BMW Motorrad 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
apply under extreme competit-
ive situations 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:
Riding for a lengthy period
with the front wheel lifted off
the ground (wheelie).
Rear wheel rotating with the
vehicle held stationary by ap-
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