Brake System With; Bmw Motorrad Race; Abs; Race Abs - BMW HP4 Rider's Manual

Motorcycle must be stopped
7
with the ignition switched on
110
or
Throttle grip must be turned
back,
Brake levers may not be actu-
ated,
The clutch must be actuated.
First the desired riding mode is
preselected. The switchover
does not take place until the
affected systems are in the re-
quired state.
The selection menu does not
disappear in the display until the
driving mode has been switched
z
over.

Brake system with

BMW Motorrad Race

ABS

Partially integral brake
Your motorcycle is equipped with
a partially integral brake configu-
ration. Both front and rear brakes
are applied simultaneously when
you pull the handbrake lever.
The footbrake lever acts only on
the rear brake.
Spinning of the rear wheel
with the front brake pulled
(burn out) is made consider-
ably more difficult by the inte-
gral function. The result may be
damage to the rear wheel brake
and the clutch.
Burn-outs may be carried out
with the ABS function switched
off only.
How does ABS work?
The maximum braking force that
can be transferred to the road
surface is partially dependent on
the friction coefficient of the road
surface. Gravel, ice, snow and
wet roads offer a considerably
poorer friction coefficient than a
dry, clean asphalt surface. The
poorer the friction coefficient of
the road surface is, the longer
the braking distance will be.
If the maximum transferable brak-
ing force is exceeded when the
driver increases the brake pres-
sure, the wheels begin to lock
and driving stability is lost, and a
fall can result. Before this situa-
tion occurs, ABS intervenes and
adjusts the brake pressure to the
maximum transferable braking
force. This enables the wheels
to continue to turn and maintains
driving stability regardless of the
road surface condition.