Alert line / Tires

Alert line is a safety tyre .When you are parking,the side surface of the tyre will easily rub the sideway and get damaged.Drivers will easily ignore this potential danger. So the damaged tyre will easily blow out on the highway and leads to accidents.
The Alert line tyre have a black rubber ring on the side surface and a red rubber ring hidden beneath it.The black ring can protect the side surface,while the red one can warn you to change tyres if the side surface is badly damaged when the red ring come out. With this tyre, you are sure to be safe.