BMW R nineT 2019, Rider'S Manual, Page: 105 / 206

If the sequence of sounds is ir-
regular:
Have the spokes checked
by a specialist workshop,
preferably by an authorised
BMW Motorrad Retailer.
Checking tyre tread depth
WARNING
Riding with badly worn tyres
Risk of accident due to impaired
handling
If applicable, have the tyres
changed in good time before
they wear to the minimum
tread depth permitted by law.
Place the motorcycle on its
stand on firm, even ground.
Measure the tyre tread depth
in the main tread grooves with
wear marks.
NOTICE
Wear indicators are built into the
main profile grooves on each
tyre. The tyre is worn out when
the tyre tread has worn down
to the level of the marks. The
locations of the marks are indic-
ated on the edge of the tyre, e.g.
by the letters TI, TWI or by an
arrow.
If the tyre tread is worn to min-
imum:
Replace tyre or tyres, as applic-
able.
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.
Detailed information is
available from your authorised
BMW Motorrad dealer or in the
internet at:
bmw-motorrad.com
Effect of wheel size on
ABS
The wheel size has a large in-
fluence on the functionality of
the ABS system. In particular,
the diameter and the width of a
vehicle's wheels are programmed
into the control unit and are fun-
damental to all calculations. Any
change in these influencing vari-
ables, caused for example by a
switch to non-standard installed
wheels, can have serious effects
on the performance of the con-
trol systems.
The sensor rings are essential
for correct wheel speed detec-
8
103
z Maintenance