Glossary Of Tire Terminology - Subaru 2010 Tribeca 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
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.
Consumer information and Reporting safety defects
.
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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