Tire Inflation Pressures; Tire Wear; Minimum Recommended Tread Depth - Triumph Speed 400 Owner's Handbook Manual

MAINTENANCE AND ADJUSTMENT
122

Tire Inflation Pressures

Incorrect tire
abnormal tread wear and instability
problems.
Under inflation may result in the tire
slipping on, or coming off the rim.
Overinflation will cause instability and
accelerated tread wear.
Both conditions are dangerous as they
may lead to loss of motorcycle control
which could result in serious injury or
death.
Tire pressures
reduced for off-road riding will impair
on-road stability.
Always make
pressures are set as described in the
Specification section for on-road use.
Operation of the motorcycle with
incorrect tire pressures may lead to
loss of motorcycle control which could
result in serious injury or death.
Correct inflation pressure will provide
maximum stability, rider comfort and
tire life. Always check tire pressures
before riding when the tires are cold.
Check tire pressures daily and adjust if
necessary. See the Specification section
for details of the correct inflation
pressures.
WARNING
inflation will cause
WARNING
which have
sure that the

Tire Wear

As the tire tread wears down, the tire
becomes more susceptible to punctures
and failure. It is estimated that 90%
of all tire problems occur during the
last 10% of tread life (90% worn). It is
recommended that tires are changed
before they are worn to their minimum
tread depth.
Minimum Recommended Tread
Depth
Riding with damaged or defective
wheels
punctured or damaged tires will affect
traction, handling and stability.
been
When
punctured, leakage is often very slow.
Always inspect tires very closely for
tire
punctures. Check the tires for cuts,
embedded nails or other sharp objects.
Check the wheel rims for dents or
deformation.
For tire replacement or for a safety
inspection
a competent
specialist knowledge and technical
understanding of motorcycles, such as
an authorized Triumph dealer.
Riding with damaged wheels and tires
is dangerous and may lead to loss of
motorcycle control which could result
in serious injury or death.
WARNING
and/or excessively
tubeless tires
of the tires,
person with
worn,
become
contact
the