Sidewall punctures cannot be repaired.

• A. Sidewall punctures can be repaired
• B. Up to 1/8 inch allowed
• C. Sidewall punctures can't be repaired
• D. Up to 1/4 inch

Answer: (C)

Sidewall punctures can’t be repaired because the sidewall is the part of the tire that flexes and bears the most dynamic loads as the tire rolls. A repair creates a weak point where the belt cords and rubber could fail under repeated flexing, bending, and heat. Since the sidewall must withstand constant movement and stress, any plug or patch there is unlikely to hold securely, increasing the risk of a sudden blowout. For safety, punctures in the sidewall are treated by replacing the tire, not repairing it. Repairs are allowed only in the tread area and must meet strict size and method criteria; the tread can accommodate a limited repair, but the sidewall cannot.