Warranty

10
“Z” Rated Tires
When “Z” appears in the size description with the service description, the
maximum speed is indicated by the service description. Examples:
Tire Designation Maximum Speed
P275/40ZR17 Above 240 km/h (149 mph)*
P275/40R17 93Y 300 km/h (186 mph)
P275/40ZR17 93Y 300 km/h (186 mph)
P275/40ZR17 (93Y) Above 300 km/h (186 mph)*
*Consult Tire Manufacturer
For tires having a maximum speed capability above 240 km/h (149 mph), a
“Z” may appear in the size designation.
For tires having a maximum speed capability above 300 km/h (186 mph),
a “Z” must appear in the size designation and the service description must
include Y in parenthesis. Example: 275/40ZR18 (99Y). Consult the tire
manufacturer for maximum speed when there is no service description.
Consult your BFGoodrich tire retailer for maximum speed capabilities.
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. Furthermore, a tire’s speed rating
does not imply that vehicles can be safely driven at the maximum speed
for which the tire is rated, particularly under adverse road and weather
conditions or if the vehicle has unusual characteristics. BFGoodrich
®
highway passenger tires that do not have a speed symbol on the sidewall
have a maximum speed rating of 105 mph (170 kph). Light truck highway
tires that do not have a speed symbol on the sidewall of the tire have
a maximum speed rating of 87 mph (140 kph). BFGoodrich winter tires
that do not have a speed symbol on the sidewall or tires with Q symbols
have a speed rating of 100 mph (160 km/h). Winter tires with a speed
symbol have a maximum speed rating in accordance with the symbol. The
speed and other ratings of retreaded tires are assigned by the retreader
and replace the original manufacturer’s ratings. IMPORTANT: In order to
maintain the speed capability of the vehicle, replacement tires must have
speed ratings equal to or higher than those fitted as original equipment (as
indicated on the tire information placard that came on your vehicle or in
the vehicle owner’s manual). If tires with lower speed ratings are fitted, the
vehicle’s handling may be affected and the speed capability of the vehicle
will be lowered to the maximum speed capability of the replacement tires
as indicated in the above table. REMEMBER…High speed driving can be
dangerous and may damage your tires. AND…When driving at highway
speeds, correct inflation pressure is especially important.
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