Guideline on Buying Tires How Tire Service Technicians Assess Issues | Page 8

Most puncture repairs involves the repair of holes in the tire's tread area. The tread area of a tire is the
rubber area around the tire exterior that hits the ground when the car is in motion. The area generally
measures about 1 to 1.5 inches from the shoulders on each side. If the puncture(s) in this area exceed
or reside in the tire's sidewall or shoulder, the tire can't be repaired in this state. Overlapping or
adjacent punctures also can't be repaired. A replacement is recommended instead.