Tyre Wear; Minimum Recommended Tread Depth - Triumph Speed 400 2023 Owner's Handbook Manual

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MAINTENANCE AND ADJUSTMENT
132

Tyre Wear

As the tyre tread wears down, the tyre
becomes more susceptible to punctures
and failure. It is estimated that 90% of
all tyre problems occur during the last
10% of tread life (90% worn). It is
recommended that tyres are changed
before they are worn to their minimum
tread depth.
Minimum Recommended Tread
Depth
WARNING
Riding with damaged or defective
wheels
and/or
punctured or damaged tyres will
affect traction, handling and stability.
When
tubeless
punctured, leakage is often very slow.
Always inspect tyres very closely for
punctures. Check the tyres for cuts,
embedded nails or other sharp objects.
Check the wheel rims for dents or
deformation.
For tyre replacement or for a safety
inspection of the tyres, contact a
competent person with the specialist
knowledge
understanding of motorcycles, such as
an authorised Triumph dealer.
Riding with damaged wheels and tyres
is dangerous and may lead to loss of
motorcycle control which could result
in serious injury or death.
In
accordance
maintenance chart, measure the depth
of the tread with a depth gauge, and
replace any tyre that has worn to, or
beyond the minimum allowable tread
depth specified in the table below:
Under 80 mph
(130 km/h)
Over 80 mph
(130 km/h)
excessively
worn,
tyres
become
and
technical
with
the
periodic
2 mm (0.08 in)
Front 2 mm (0.08 in)
Rear 3 mm (0.12 in)

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