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 the centre stand or an auxil-
iary stand, engine idling or with
a gear engaged.
If the front wheel lifts clear of the
ground under severe accelera-
tion, the ASC reduces engine
torque until the front wheel re-
gains contact with the ground.
Under these circumstances,
BMW Motorrad recommends
rolling the throttle slightly closed
so as to restore stability with the
least possible delay.
When riding on a slippery sur-
face, never snap the throttle
twistgrip fully closed without
pulling the clutch at the same
time. Engine braking torque can
cause the rear wheel to lock, with
a corresponding loss of stability.
The BMW Motorrad ASC is un-
able to control a situation of this
nature.
Engine management
with Dynamic Traction
Control
How does DTC work?
with Dynamic Traction Control
(DTC)
OE
The BMW Motorrad DTC system
compares the speed of rotation
of the front wheel and the rear
wheel. The differential is used to
compute slip as a measure of the
reserves of stability available at
the rear wheel. If slip exceeds a
certain limit, the engine control
intervenes and adapts the engine
torque accordingly.
WARNING
Risky riding.
Risk of accident despite 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
with Dynamic Traction Control
(DTC)
OE
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.
7
114
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Engineering details
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