Tire Inflation Pressures; Tire Wear; Minimum Recommended Tread Depth - Triumph America Handbook

Maintenance and Adjustment

Tire Inflation Pressures

Correct tire inflation pressures 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 Specification section for
correct inflation pressures). Alternatively, ask
your authorized Triumph dealer to inspect
your wheels and tires.
Warning
Incorrect tire inflation will cause abnormal
tread wear and instability problems which
may lead to loss of control and an accident.
Under-inflation may result in the tire
slipping on, or coming off the rim.
Over-inflation will cause instability and
accelerated tread wear.
Both conditions are dangerous as they may
cause loss of control leading to an accident.

Tire Wear

As the tire tread wears down, the tire
becomes more susceptible to punctures. It is
estimated that 90% of all tire problems occur
during the last 10% of tread life (90% worn).
It is therefore not recommended to use tires
until they are worn to their minimum.
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Minimum Recommended Tread
Depth
In accordance with the periodic maintenance
chart, measure the depth of the tread with a
depth gauge, and replace any tire that has
worn to, or beyond, the minimum allowable
tread depth specified in the table below:
Under 80 mph 0.08 in (2 mm)
(130 km/h)
Over 80 mph Rear 0. 1 2 in (3 mm)
(130 km/h) Front 0.08 in (2 mm)
Warning
This motorcycle must not be operated
above the legal road speed limit except in
authorized closed-course conditions.
Warning
Only operate this Triumph motorcycle at
high speed in closed-course on-road
competition or on closed-course racetracks.
High-speed operation should only then be
attempted by riders who have been
instructed in the techniques necessary for
high-speed riding and are familiar with the
motorcycle's characteristics
conditions. High-speed operation in any
other circumstances is dangerous and will
lead to loss of motorcycle control and an
accident.
in all