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Locknut of the final-
drive chain tensioning
screw
M8
19 Nm
Tighten nut 1 to the specified
tightening torque.
Rear quick-release axle
in swinging arm
M24 x 1.5
Thread-locking compound:
mechanical
125 Nm
Checking chain wear
Engage 1st gear.
Turn the rear wheel in the
normal direction of travel until
the chain is tensioned.
Determine the length of the
chain underneath the rear
wheel swinging arm above
the middle of 10 rivets in 3
different places.
Permissible chain length
max 144 mm (measured
from the centre of 10 rivets,
chain pulled taut)
If the chain has stretched to the
maximum permissible length:
Consult a specialist work-
shop, preferably an authorised
BMW Motorrad retailer.
Check whether a rivet head 1
has twisted out of line.
Rivet heads are parallel to the
chain centreline 2.
Chain riveting is OK.
If one or more rivet heads have
twisted out of line:
Consult a specialist work-
shop, preferably an authorised
BMW Motorrad retailer.
195
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