BMW R 1200 GS Adventure Rider's Manual page 87

Even with ASC, physical
laws cannot be overrid-
den. The driver is always re-
sponsible for adapting his/her
driving style.
Do not reduce the addition-
al safety provided with risky
driving.
Special situations
At an increasing angle, the
acceleration performance
is increasingly limited in ac-
cordance with physical laws.
This can result in delayed ac-
celeration when coming out of
very tight curves.
To detect the spinning of the
rear wheel, the speeds of the
front and rear wheel are com-
pared. If implausible values
are detected over a longer
period of time, the ASC func-
tion is deactivated for safety
reasons and an ASC fault is
indicated. The condition for a
fault message is the complet-
ed self-diagnosis.
In the following unusual driv-
ing states, the BMW Motorrad
ASC can be automatically de-
activated.
Unusual driving conditions:
Driving on the rear wheel
(wheely) for a longer period.
Rear wheel spinning in
place with front brake pulled
(burn out).
Heating up on the main or
auxiliary stand at idle or with
gear engaged.
The ASC is reactivated by
switching the ignition on
and off and then driving at a
speed above 10 km/h.
With extremely massive-bar
tires, an ASC intervention can
occur before the optimum
propulsion is achieved due
to the greater slip involved. In
these cases the BMW Motor-
rad ASC should be deactivat-
ed.
If the front wheel loses con-
tact to the ground during ex-
treme acceleration, the ASC
reduces the engine torque
until the front wheel touches
the ground again.
In this case, BMW Motorrad
recommends turning back
the throttle twist grip some-
what to achieve a stable driv-
ing state again as quickly as
possible.
On a slippery surface, the
throttle twist grip should nev-
er be suddenly turned back
completely without pull the
clutch at the same time. The
engine braking torque can
cause the rear wheel to block,
resulting in an unstable driv-
ing state. This case cannot
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