Wheels
Production option s we ight
means the combined weight of
those installed regular production
options weighing over 5 lbs.
(2.3 kg) in excess of those stand-
ard items which they replace, not
previously considered in curb
weight or accessory weight, in-
cluding heavy duty brakes, ride
levelers, roof rack, heavy duty
battery, and special trim.
Radial ply tir e
means a pneumatic tire in which
the ply cords that extend to the
beads are laid at substantially
90 degrees to the centerline of
the tread.
Recommended inflation
pressure
see ¢ page 204 , Cold tire infla-
tion pressure.
Reinforced tire
means a tire designed to operate
at higher loads and at higher in-
flation pressures than the corre-
sponding standard tire . Rein -
forced tires may be identified as
"XL" "xl" "EXTRA LOAD" or "RF"
, , ,
on the sidewall.
206
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim diam eter
means nominal diameter of the
bead seat . If you change your
wheel size, you will have to pur -
chase new tires to match the new
rim diameter .
Rim size designation
means rim diameter and width.
Rim width
means nomina l distance between
rim
flanges.
Sidewall
means that portion of a tire be-
tween the tread and bead .
Speed rating (letter code)
means the speed at which a tire is
designed to be driven for extend-
ed periods of time. The ratings
range from 93 mph (150 km/h)
to
186 mph (298 km/h) ¢ table
on page 202 .
You may not find
this information on all tires be-
cause it is not required by law .
The speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the ...
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