Electronic Engine Manage; Asc - BMW F 800 GS Rider's Manual

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
BMW Motorrad ABS is unable to
counteract their effects.
Electronic engine
management with
BMW Motorrad ASC
with Automatic Stability Control
OE

(ASC)

How does ASC work?
The BMW Motorrad ASC 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 in-
tervenes, adapting engine torque
accordingly.
What is the design
baseline for
BMW Motorrad ASC?
BMW Motorrad ASC is designed
as an assistant system for the
rider and for use on public roads.
The extent to which the rider af-
fects the ASC can be consider-
able (weight shifts when corner-
ing, items of luggage loose on
the motorcycle), especially when
style of riding takes rider and ma-
chine close to the limits imposed
by physics.
The system is not optimised for
special requirements that apply
under extreme competitive situ-
ations off-road or on the track.
You have the option of deactiv-
ating the BMW Motorrad ASC
system for these circumstances.
WARNING
Risky riding.
Risk of accident despite ASC.
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 lag in acceleration out of
very tight bends.
The speeds of the front and
rear wheels are compared as
one means of detecting the rear
wheel's incipient tendency to
spin or slip sideways. If the sys-
tem registers implausible values
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