BMW HP4 Rider's Manual page 115

RACE
The RACE mode is the sportiest
mode as long as the coding plug
is not installed.
The ABS system intervenes later
in this mode. The wheels are still
prevented from locking up, how-
ever the lift-off detection for the
rear wheel is deactivated. The
rear wheel can lift off the ground!
Flip over risk, as the lift-off
detection for the rear wheel
is deactivated.
Be prepared for lift-off of the
rear wheel in the case of hard
braking.
The DTC system intervenes
even later so that longer drifts
and brief wheelies are also pos-
sible at the end of curves (at an-
gles below 25°).
The DDC setting is designed for
a sporty riding style.
SLICK
To activate the SLICK mode, the
coding plug must be used.
The SLICK mode was developed
for roads with good visibility and
very high friction coefficients, as
they are usually found only on
racetracks. This mode also as-
sumes that the motorcycle is rid-
ing with racing tires that have
very good adhesion.
The engine output, increase in
power and response are de-
signed for maximum sportiness.
The response characteristics of
the ABS system in the SLICK
mode are derived from the IDM.
Furthermore, differently from
the RACE mode, no ABS con-
trol is carried out on actuation of
the footbrake lever on the rear
wheel. The rear wheel can lock
up. The lift-off detection for the
rear wheel is also deactivated.
Flip over risk, as the lift-off
detection for the rear wheel
is deactivated.
Be prepared for lift-off of the
rear wheel in the case of hard
braking.
Risk of injury, as the ABS
control on the rear wheel is
deactivated.
Be prepared for the rear wheel
locking up in the case of
braking.
In this mode the control of the
DTC system assumes that rac-
ing tires with maximum adhesion
(slick tires) are mounted. Longer
wheelies and wheelies at small
angles are also permitted, which
means it is possible to flip over
backward in extreme cases!
The behavior of the DDC sys-
tem is comparable to that of the
RACE mode.
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