Bars of hard rubber that appear across the treads of a tire. They are 1/16"
above the base of the tread . They become visible when the tread has been worn down so that only 1.5 mm (a sixteenth of an inch) of tread is left.
Bars of hard rubber that appear across the treads of a tire. They are 1/16"
above the base of the tread . They become visible when the tread has been worn down so that only 1.5 mm (a sixteenth of an inch) of tread is left.
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012