Minimum Recommended Tread Depth; Tyre Replacement - Triumph Street Twin Owner's Handbook Manual

Maintenance And Adjustment
Minimum Recommended Tread
Depth
Warning
Operation with excessively worn tyres
is hazardous and will adversely affect
traction, stability and handling which
may lead to loss of control and an
accident.
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.
Operation with punctured or damaged
tyres will adversely affect motorcycle
stability and handling which may lead
to loss of control or an accident.
Check the rims
deformation. Operation with damaged
or defective wheels
dangerous and loss of motorcycle
control or an accident could result.
Always consult
Triumph dealer for tyre replacement, or
for a safety inspection of the tyres.
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)
122
tyres become
for dents
or tyres
your authorised
with the periodic
2 mm (0.08 in)
Front 2 mm (0.08 in)
Rear 3 mm (0.12 in)
This Triumph motorcycle must not be
operated above the legal road speed
limit except
course conditions.
Only operate this Triumph motorcycle
at high speed in closed course, on‑road
competition
racetracks.
should only then be attempted by
riders who have been instructed in the
techniques necessary for high speed
riding and
motorcycle's
conditions. High speed operation in any
or
other circumstances is dangerous and
will lead to loss of motorcycle control
is
and an accident.

Tyre Replacement

All Triumph motorcycles are carefully
and extensively tested in a range of
riding conditions to ensure that the
most effective tyre combinations are
approved for use on each model. It is
essential that approved tyres and inner
tubes (if installed) fitted in approved
combinations,
purchasing replacement items. The use
of non‑approved tyres and inner tubes,
or approved tyres and inner tubes in
non‑approved combinations, may lead
to motorcycle instability, loss of control
and an accident.
Warning
in authorised
Warning
or on closed
High speed operation
are familiar with
characteristics
are used
closed
course
the
in all
when