McLaren Super Series Owner's Handbook Manual page 261

Maintaining Your McLaren
Wheels and Tyres
WARNING: The tyres must be
mounted according to the labelling
on the tyre wall. The benefits of
asymmetric tyres will only be
available if the tyres are fitted
correctly.
Trofeo R tyres
The driver s skill level must be commensurate
with the vehicle performance levels in the upper
range limits due to increased safety risks.
NOTE: Due to ultra high performance
design and the particular manufacturing
process of these tyres, they must
always be replaced in axle sets (front
and rear) regardless of wear or mileage.
Failure to do so may have a negative
affect on the handling characteristics
of the vehicle.
The main features of the Trofeo R tyres are a
reduced tread depth and a special tread pattern
and carcass compared with other tyres.
WARNING: Risk of accident from worn
tyres. Trofeo R tyres have a smaller
tread depth, and thus can reach their
wear limit sooner. It is important to
check tyre wear frequently to avoid
risk of serious personal injury or
death from worn tyres.
WARNING: Risk of accident through
loss of road surface contact, control
over the vehicle and braking ability,
leading to serious personal injury or
death. The reduced tyre tread depth
means that there is an increased risk
of hydroplaning on wet roads. When
driving on wet or mud-covered roads
reduce speed significantly.
NOTE: Notify anyone using your car of
these characteristics and possible
effects.
Inspecting wheels and tyres
At least every 7 days, check the tyres for cuts,
punctures, tears, bumps, deformation and cracks.
Check wheels for severe corrosion. Damaged
wheels could cause a loss of tyre pressure.
Regularly check the tyre tread depth and the
condition of the tread across the whole width of
the tyre. Turn the front wheels to full lock in
order to inspect the inner tread.
When the tread is worn to 1.6 mm, the wear
indicators appear on the surface of the tread
pattern, producing a continuous band of rubber
across the width of the tyre. Tyres must be
replaced as soon as the wear indicator becomes
visible, or sooner if legislation dictates
replacement at a greater tread depth.
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