Removing Front Wheel - BMW HP4 Rider's Manual

lar, the diameter and the width
9
of a vehicle's wheels are pro-
grammed into the control unit
144
and are fundamental to all cal-
culations. Any change in these
influencing variables, caused for
example by a switch to wheels
other than those installed ex-
works, can have serious effects
on the performance of the con-
trol systems.
The sensor rings are essential
for correct road-speed calcula-
tion, and they too must match
z
the motorcycle's control sys-
tems and consequently cannot
be changed.
If you decide that you would like
to fit non-standard wheels to
your motorcycle, it is very im-
portant to consult a specialist
workshop beforehand, preferably
an authorised BMW Motorrad
dealer. In some cases, the data
programmed into the control
units can be changed to suit the
new wheel sizes.

Removing front wheel

Make sure the ground is level
and firm and place the motor-
cycle on its stand.
Remove screw 1 and remove
the wheel-speed sensor from
its bore.
Mask off the parts of the wheel
rim that could be scratched in
the process of removing the
brake calipers.
Once the calipers have
been removed, there is
a risk of the brake pads being
pressed together to the extent
that they cannot be slipped back
over the brake disc on reas-
sembly.
Do not operate the handbrake
lever when the brake calipers
have been removed.
Remove screws 2 of the brake
callipers on left and right.