BMW R 1250RS, Rider'S Manual

Page: 156 / 279

ive situations off-road or on the
track. The BMW Motorrad ASC/
DTC can be deactivated in these
cases.
WARNING
Risky riding
Risk of accident despite ASC/
DTC
Invariably, it remains the rider's
responsibility to adapt riding
style to riding conditions.
Do not take risks that would
negate the additional safety
offered by this system.
Special situations
In accordance with the laws of
physics, the ability to accelerate
is restricted more and more as
the angle of heel increases. Con-
sequently, there can be a per-
ceptible reduction in acceleration
out of very tight bends.
The speeds of the front and rear
wheels are compared and DTC,
unlike ASC, also takes the bank
angle into account in processing
data to detect the rear wheel's
incipient tendency to spin or slip
sideways.
with riding modes Pro
OE
If the electronic processor re-
ceives values for the bank angle
that it considers implausible over
a lengthy period, a dummy value
is used for the bank angle or the
DTC function is switched off.
Under these circumstances the
indicator for a DTC fault shows.
Self-diagnosis has to complete
before fault messages can be is-
sued.
The BMW Motorrad Traction
Control can shut down automat-
ically under the exceptional riding
conditions outlined below.
Exceptional riding
conditions:
Riding for a lengthy period with
the front wheel lifted off the
ground (wheelie).
Rear wheel rotating with the
vehicle held stationary by ap-
plying the front brake (burn-
out).
Heating up with the motorcycle
on an auxiliary stand, in neutral
or with a gear engaged.
Minimum speed for ac-
tivation of DTC
min 5 km/h
If the front wheel lifts clear of the
ground under severe accelera-
tion, the ASC or DTC reduces
engine torque in the
RAIN
and
ROAD
riding modes until the front
wheel regains contact with the
ground.
8
154
z Engineering details