Mercedes-Benz SLR McLaren. Operator's Manual.

Rim diameter
The rim diameter 4 ( page 272) is the
diameter of the bead seat, not the
diameter of the rim edge. Rim diameter is
indicated in inches (in).
Tire load rating
The tire load rating 5 ( page 272) is a
numerical code associated with the
maximum load a tire can support.
For example, a load rating of 91 corresponds
to a maximum load of 1356 lbs
(615 kg) the tire is designed to support.
See also “Maximum tire load”
( page 277) where the maximum load associated
with the load index is indicated in
kilograms and lbs.
Warning! G
The tire load rating must always be at least
half of the GAWR ( page 282) of your vehicle.
Otherwise tire failure may be the result
which may cause an accident and/or serious
personal injury to you or others.
Always replace rims and tires with the same
designation, manufacturer and type as
shown on the original part.
Warning! G
Do not overload the tires by exceeding the
specified load limit or vehicle capacity
weight as indicated on the placard located
on the driver’s door B-pillar. Overloading the
tires can overheat them, possibly causing a
blowout. Overloading the tires can also
result in handling or steering problems, or
brake failure.
Operation
Tires and wheels
For additional information on tire load
rating, see “Load identification”
( page 275).
i
Tire load rating 5 ( page 272) and
tire speed rating 6 ( page 272) are
also referred to as “service description”.
273