Original tires have the wear indicators which are built in the drawing of a protector to define when tires need to be replaced. These indicators are shown by a strip 12 mm wide (0,47 inches) when depth of the drawing of a protector grinds off to 1,6 mm (0,063 inches). When the indicator of wear appears in 3 or more flutes, in six places, it is recommended to replace tires.
