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7.5.1.2 Checking the tires
The tread is far less important for bicycle tires
than it is for car tires, for example. Consequently,
tires can still be used with a worn tread with the
exception of tires on mountain bikes.
1 Check the tread wear. The tire is worn if the
anti-puncture protection or the carcass cords
are visible.
Since resistance to punctures also depends on
the thickness of the tread, it may make sense
to change the tire at an earlier stage.
Figure 136: Tire without tread which can still be used (1)
and tire with puncture protection showing through (2),
which needs to be replaced
2 Check the side walls for wear. If there are
any cracks or tears, the tire must be replaced.
1
Figure 137: Examples of fatigue cracks (1) and ageing
cracks (2)
Replacing a wheel requires considerable
mechanical expertise. If a tire is worn, it needs
to be replaced at a specialist dealer.
2
Cleaning and servicing
1
2
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