BMW F 800 GS Adventure Rider's Manual page 78

Special situations
7
The speeds of the front and rear
wheels are compared as one
76
means of detecting a wheel's
incipient tendency to lock. If
the system registers implaus-
ible values for a lengthy period
the ABS function is deactivated
for safety reasons and an ABS
fault message is issued. Self-dia-
gnosis has to complete before
fault messages can be issued.
Exceptional riding conditions can
also lead to a fault message be-
ing issued:
Riding for a lengthy period with
the front wheel lifted off the
z
ground (wheelie).
Rear wheel rotating with the
vehicle held stationary by ap-
plying the front brake (burn-
out).
Heating up with the motorcycle
on the centre stand or an auxil-
iary stand, engine idling or with
a gear engaged.
Rear wheel locked for a lengthy
period, for example while des-
cending off-road.
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.
How important is regular
maintenance?
Invariably, a technical sys-
tem cannot perform beyond
the abilities dictated by its level
of maintenance.
In order to ensure that the
BMW Motorrad ABS is always
maintained in optimum condition,
it is essential for you to comply
strictly with the specified
running-in checks.
Reserves for safety
The potentially shorter braking
distances which BMW Motorrad
ABS permits must not be used
as an excuse for careless riding.
ABS is primarily a means of en-
suring a safety margin in genuine
emergencies.
Take care when cornering.
When you apply the brakes
on a corner, the motorcycle's
weight and momentum take over
and even ABS is unable to coun-
teract their effects. Invariably,
the rider bears responsibility for
assessing road and traffic con-
ditions and adopting his or her
style of riding accordingly.
Do not take risks that would neg-
ate the additional safety offered
by this system.