What is a requirement for the outside sidewall of the tires?

The requirement for the outside sidewall of tires is that there should be no cuts, scrapes, or bulges. This is crucial for the safety and performance of the vehicle. Cuts and scrapes can compromise the structural integrity of the tire, potentially leading to failure while on the road, which creates a significant safety hazard. Bulges often indicate that there is a weakness in the tire, which can also lead to blowouts.

Maintaining the condition of the tire sidewall is essential in ensuring proper traction, stability, and overall vehicle control. Regular inspections help to ensure that these tires remain in good condition and free from damage that could compromise safety during operation.