BRZ _ U . book 394 ページ 2023 年 8 月 15 日 火曜日 午前 10 時 17 分
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Tire Information ■ Glossary of Tire Terminology � Accessory weight
The combined weight ( in excess of those standard items which may be replaced ) of automatic transmission , power steering , power brakes , power windows , power seats , radio , and heater , to the extent that these items are available as factoryinstalled equipment ( whether installed 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 centerline of the tread .
� Carcass
The tire structure , except tread and sidewall rubber which , when inflated , 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 , sidewall , or inner liner of the tire extending to cord material .
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