Glossary Of Tire Terminology - Subaru 2001 Outback Owner's Manual

& Glossary of tire terminology
.
Accessory weight
The combined weight (in excess of
those standard items which may be
replaced) of automatic transmis-
sion, power steering, power brakes,
power windows, power seats, radio,
and heater, to the extent that these
items are available as factory-in-
stalled equipment (whether in-
stalled or not).
.
Bead
The part of the tire that is made of
steel wires, wrapped or reinforced
by ply cords and that is shaped to fit
the rim.
.
Bead separation
A breakdown of the bond between
components in the bead.
.
Bias ply tire
A pneumatic tire in which the ply
cords that extend to the beads are
laid at alternate angles substantially
less than 90 degrees to the center-
line of the tread.
.
Carcass
The tire structure, except tread and
Consumer information and Reporting safety defects
sidewall rubber which, when in-
flated, bears the load.
.
Chunking
The breaking away of pieces of the
tread or sidewall.
.
Cold tire pressure
The pressure in a tire that has been
driven less than 1 mile or has been
standing for three hours or more.
.
Cord
The strands forming the plies in the
tire.
.
Cord separation
The parting of cords from adjacent
rubber compounds.
.
Cracking
Any parting within the tread, side-
wall, or inner liner of the tire
extending to cord material.
.
Curb weight
The weight of a motor vehicle with
standard equipment including the
maximum capacity of fuel, oil and
coolant, and if so equipped, air
conditioning and additional weight
optional engine.
.
Extra load tire
A tire designed to operate at higher
loads and higher inflation pressure
than the corresponding standard
tire.
.
Groove
The space between two adjacent
tread ribs.
.
Innerliner
The layer(s) forming the inside sur-
face of a tubeless tire that contains
the inflating medium within the tire.
.
Innerliner separation
The parting of the innerliner from
cord material in the carcass.
.
Intended outboard sidewall
The sidewall that contains a
(1)
whitewall, bears white lettering
or bears manufacturer, brand,
and/or model name molding that
is higher or deeper than the
same molding on the other side-
wall of the tire, or
The outward facing sidewall
(2)
of an asymmetrical tire that has
a particular side that must al-
ways face outward when mount-
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