What is the flattening ratio of car tires?
The height of the tire is the percentage of the tire width
What you mean is the flatness ratio of the tire.
Give you a little explanation for it. The flat ratio is a proportional value: the ratio of the thickness of the side of the tire to the width of the tread. For example: 205 / 60R15, flat ratio is 60%, recorded as 60, 60% of the tread 205 is the tire thickness. 15 is the hub diameter, the tire of this model that put all the dimensions of the tire are included.
