BMW F 800 GS -, Rider'S Manual

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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 Mo-
torrad tests certain makes, and
approves those that it certifies
as roadworthy. If BMW Motorrad
has not approved the wheels and
tyres, it cannot assess their suit-
ability or provide any guarantee
of road safety.
Use only wheels and tyres ap-
proved by BMW Motorrad for
your type of motorcycle.
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
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 unit
can be changed to suit the new
wheel sizes.
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