HIGH SPEED DRIVING CAN BE DANGEROUS
Correct inflation pressure is especially important.However, at high
speeds, even with the correct inflation pressure, a road hazard, for
example is more difficult to avoid and if contact is made, has a greater
chance of causing tire damage than at a lower speed. Moreover, driving
at high speed reduces the reaction time available to avoid accidents and
bring your vehicle to a safe stop. If you see any damage to a tire or
wheel, replace it with the spare at once and visit a participating
Michelin Tire Retailer.
Exceeding the maximum speeds shown on the following page for each
type of MICHELIN® tire will cause the tire to build up excessive heat
which can cause tire damage that could result in sudden tire destruction
and rapid air loss. Failure to control a vehicle when one or more tires
experience a sudden air loss can lead to an accident.
In any case, you should not exceed reasonable speeds as indicated by
the legal limits and driving conditions.
SPEED RATINGS
Speed Symbols are shown on the sidewall of some MICHELIN® tires.
The following table shows the maximum speed corresponding to the
symbol.
*Some V (or VR) rated tires may have a speed capacity greater than
149 mph (240 km/h). Consult your participating Michelin® tire retailer
for maximum speed rating if your vehicle capability exceeds this speed.
**Z (or ZR) rated tires are designed to use on cars with maximum speed
capabilities in excess of 149 mph (240 km/h).
(W and Y speed ratings are subcategories of Z).
Consult your Michelin tire retailer for maximum speed capabilities. For
PAX® System Tires consult an authorized PAX System Tire Retailer.
Although a tire may be speed-rated, we do not endorse the operation of
any vehicle in an unsafe or unlawful manner. Speed ratings are based on
laboratory tests which relate to performance on the road, but are not
applicable if tires are underinflated, overloaded, worn out, damaged,
altered, improperly repaired or retreaded.
MICHELIN
172
INSPECT YOUR TIRES, DO NOT DRIVE ON A DAMAGED TIRE
OR WHEEL
HAZARDS
Objects in the road, such as potholes, glass, metal, rocks, wood, debris
and the like, can damage a tire and should be safely avoided. Unavoid-
able contact with such objects should prompt a thorough tire inspection.
Anytime you see any damage to your tires or wheels, replace with the
spare at once and immediately visit any Michelin tire retailer. For PAX®
System Tires see an authorized PAX System tire retailer.
MICHELIN174
IMPACT DAMAGE
A tire impacted by a road hazard (curb, pothole, debris) may be damaged
but not have visible signs of damage on its surface. A tire damaged by an
impact may sustain a sudden failure a day, week, or even months later.
You may not recall hitting an object that damaged or injured your tires.
Air loss, unusual tire wear, localized wear or vibrations can also be signs
of internal tire damage.
If you suspect any damage to your tire or wheel from an impact with a
curb, pothole, debris on the road or any other road hazard, or if you feel
or hear any unusual vibration, replace with a properly inflated spare at
once and immediately visit any qualified tire technician.
INSPECTION
When inspecting your tires, including the spare, check the air pressures.
If the pressure check indicates that one of your tires has lost pressure of
two pounds or more, look for signs of penetration, valve leakage or wheel
damage that may account for the air loss.
Always look for bulges, cracks, cuts, penetrations, and abnormal tire
wear, particularly on the edges of the tire tread, which may be caused
by misalignment or underinflation. If any such damage is found, the
tire must be inspected by any Michelin tire retailer at once. Use of a
damaged tire could result in tire destruction.
All tires will wear out faster when subjected to high speeds as well as
hard cornering, rapid starts, sudden stops, frequent driving on roads
which are in poor condition, and off road use. Roads with holes and rocks
or other objects can damage tires and cause misalignment of your vehicle.
When driving on such roads, drive carefully and slowly, and before
driving again at normal or highway speeds, examine your tires for any
damage, such as cuts, bulges, penetrations, unusual wear patterns, etc.
WEAR BARS
MICHELIN® tires contain “Wear-Bars” in the grooves of the tire tread
which show up when only 2/32 nds of an inch (1.6 mm) of tread is
remaining. At this stage, your tires must be replaced. Tires worn beyond
this stage are extremely dangerous.
MICHELIN
175