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Tread wear marks are integrated into the main grooves
on every tyre. If the tyre tread has worn down to the
level of the marks, the tyre is completely worn. The
location of the tread wear marks are indicated by an aero
mark on the edge of the tyre (ref. Fig. 48). Replace the
tyre when the minimum tread depth is reached.
Tyre tread condition
Whenever the tyre pressure is checked, ensure to
check the tyre treads and side walls for wear, damage
and foreign objects.
The tyres also to be checked for:
• Bumps or bulges in the sides of the tyre or in the
tread.
• Cuts, splits or cracks in the tyre (replace the tyre
without fail if found any of the above issues to
ensure the safety of the rider).
• Replace the tyre when the tyre wears off to the
tyre wear indicator level (1) which is indicated by
the tyre wear indicator (TWI) mark (2) on the side
surface of the tyre (ref. Fig. 54).
• Tread depth of the tyre should be minimum 2 mm
if the vehicle speed is higher than 100 kmph, and
it shall be minimum 1 mm if the vehicle speed is
lesser than 100 kmph.
Tread depth (min) :
2 mm (> 100 kmph)
1 mm (< 100 kmph)
Visually inspect the tyres at regular intervals for cracks
and cuts, especially on the side walls, and bulges or
large stains that indicate internal damage. Replace them
if damaged.
Remove any stones or other foreign bodies stuck in the
tread.
Warning
A
Fig. 54
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