BMW R 1200 GS Manual page 154

How can the shortest
braking distance be
achieved?
During braking the dynamic
load distribution between the
front and rear wheel changes.
The heavier braking is, the
higher the load on the front
wheel. The greater the wheel
load, the more braking force
can be transferred.
To achieve the shortest possi-
ble braking distance, the front
brake must be operated
quickly and with increasing
force. This optimally utilizes
the dynamic load increase on
the front wheel. At the same
time, the clutch should also be
disengaged.
With the "forced braking" often
practiced, during which the
brake pressure is generated
as quickly as possible and with
maximum force, the dynamic
load distribution is unable to
follow the increase in
deceleration and the brake
force cannot be completely
transferred to the road sur-
face. To prevent locking of
the front wheel, the ABS must
intervene and reduce the
brake pressure, which
increases the braking
distance.
What happens when the ABS
control function fails?
A fault in the BMW Motorrad
Integral ABS is indicated by a
corresponding warning in the
instrument cluster.
If only the ABS control function
fails, the integral system and
the brake booster continue to
operate. If these systems also
fail, the residual braking func-
tion is activated. In this case,
the forces to be applied to the
brake levers are considerably
higher and the required lever
travel increases.
The residual braking function
is a mechanical function and is
always available when the
BMW Motorrad Integral ABS
fails, regardless of the battery
charging level. It meets all
requirements of the worldwide
legislation on the brake design
of motor vehicles and enables
the rider to brake the motor-
cycle.
When driving with the residual
braking function, the following
instructions must be followed:
• Adjust the brake levers to
the maximum travel
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