Nut on quick-release axle
(rear wheel)
100 Nm
Checking chain wear
Make sure the ground is level
and firm and place the motor-
cycle on its stand.
Accelerated wear.
If a component of the
sprocket with mounting parts is
found to be worn, the entire set
has to be replaced.
Pull the chain back at the rear-
most point of the sprocket.
The tips of the sprocket teeth
must remain inside the chain
links.
If the chain can be pulled back
far enough to expose the tips of
the sprocket teeth:
Consult a specialist workshop,
preferably an authorised BMW
Motorrad dealer.
Wheels
Tyre recommendation
For each size of tyre BMW
Motorrad tests and classifies
as roadworthy certain makes.
BMW Motorrad cannot assess
the suitability or provide any
guarantee of road safety for other
tyres.
BMW Motorrad recommends
using only tyres tested by BMW
Motorrad.
You can obtain detailed informa-
tion from your authorised BMW
Motorrad dealer or on the Inter-
net at www.bmw-motorrad.com.
Effect of wheel size
on suspension-control
systems
Wheel size is very important as a
parameter for the ABS. In partic-
ular, the diameter and the width
of a motorcycle's wheels are pro-
grammed into the control unit
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 sys-
tem.
The sensor rings are essential for
correct road-speed calculation,
and they too must match the
motorcycle's system and con-
sequently cannot be changed.
If you decide that you would like
to fit non-standard wheels to
8
78
z
Maintenance
