BMW S 1000XR 2018 Rider's Manual page 116

How important is regular
8
maintenance?
114
WARNING
Failure to have maintenance
performed on the brake sys-
tem regularly.
Accident hazard
To ensure that the
BMW Motorrad Race ABS
is in a properly maintained
condition, it is vital that the
specified service intervals are
kept to.
Reserves for safety
z
But remember: the potentially
shorter braking distances which
BMW Motorrad Race ABS per-
mits must not be used as an ex-
cuse for careless riding. ABS is
primarily a means of ensuring a
safety margin in genuine emer-
gencies.
Be careful in curves! When you
apply the brakes on a corner,
the motorcycle's weight and
momentum take over and even
BMW Motorrad Race ABS is un-
able to counteract their effects.
Further development of
Race ABS to ABS Pro
OE
with ABS Pro
In the past, the BMW Motorrad
Race ABS system provided for
a very high level of safety while
braking during straight-ahead rid-
ing. Now ABS Pro also offers
increased safety even when brak-
ing in curves. ABS Pro prevents
locking-up of the wheels even
in case of rapid brake actuation.
ABS Pro reduces abrupt changes
in steering forces, especially dur-
ing panic braking, and therefore
decreases the risk of unwanted
wheelies occurring.
ABS control
From a technical standpoint,
ABS Pro adjusts the ABS con-
trol to the angle of inclination of
the motorcycle in dependence
on the respective riding situa-
tion. Signals for the roll and yaw
rate and the lateral acceleration
are used to determine the incli-
nation of the motorcycle. The
signals come from the yaw rate
sensor, which is already used for
Dynamic Traction Control DTC
and for Dynamic ESA.
With an increasing inclination, the
braking pressure gradient is in-
creasingly limited at the start of
braking. This results in a slower
pressure buildup. In addition, the
pressure modulation in the range
of the ABS control is more uni-
form.