Operation Manual

Turn the rear wheel in the nor-
mal direction of travel until the
chain is tensioned.
Measure the length of the
chain over 9 rivets below the
rear wheel swinging arm.
Permissible chain length
max 144.30 mm (measured
centre to centre over 10
pins, chain pulled taut)
If the chain has stretched to the
maximum permissible length:
Seek the advice of a specialist
workshop, preferably an author-
ised 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.
It is absolutely essential to ob-
serve the maximum permissible
speed and load-capacity ratings
(see "Technical data").
Comply with the instructions re-
garding maximum speed for rid-
ing with knobbly tyres or winter
tyres fitted ( 73).
You can obtain detailed
information from your authorised
BMW Motorrad dealer or on
the Internet at www.bmw-
motorrad.com.
Effect of wheel size on
chassis and suspension
control systems
Wheel size is very important as
a parameter for the running-gear
control systems ABS and ASC.
In particular, the diameter and the
width of a vehicle's wheels are
programmed 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 con-
trol systems.
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