What should be verified about the tire tread during a pre-trip inspection aside from its depth?

During a pre-trip inspection, one of the key aspects to verify regarding tire tread is that it should not have any audible leaks. This is crucial because any air escaping from the tire due to leaks can lead to a loss of tire pressure, affecting the handling, stability, and overall safety of the vehicle. Ensuring that tires are free from leaks helps maintain the integrity of the tire structure and enhances road safety.

In contrast, uneven wear, cracks, or balding tires indicate potential problems that need to be addressed. Uneven tire wear may suggest misalignment or suspension issues, while cracks can compromise the tire's structural integrity, and balding tires reduce grip and increase the risk of blowouts. Thus, verifying the absence of audible leaks is an important aspect of ensuring tire safety and performance during a pre-trip inspection.