BMW M 1000 RR 2021, Rider'S Manual

Page: 192 / 288

186 MAINTENANCE
ATTENTION
Rear wheel at an angle be-
cause tensioning screws not
adjusted to same setting
Accelerated wear at rear
wheel and chain drive
Make sure that the rear
wheel is aligned to track
correctly (same scale read-
ing on both sides of the rear
wheel swinging arm).
Set to the same scale value 4
on both sides.
Tighten lock nuts 3 on left
and right to the specified
tightening torque.
Locknut of the final-
drive chain tensioning
screw
19 Nm
Tighten quick-release axle
nut 1 to the specified tight-
ening torque.
Rear quick-release axle
in swinging arm
Thread-locking compound:
mechanical
125 Nm
Check chain sag ( 185).
Checking chain wear
Requirement
Chain tension is set correctly.
Make sure the ground is level
and firm and place the motor-
cycle on its stand.
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.