How is tire tread depth correctly measured?

The correct approach to measuring tire tread depth involves assessing the depth in any two adjacent major grooves. This method is important because it provides an average representation of the tire’s tread condition. Tire tread depth is crucial for maintaining proper traction, especially in wet conditions, and measuring in major grooves helps to ensure that important areas, where water is channeled away from the tire, are adequately examined.

While measuring in the deep part of the tread might reflect a localized depth, it won't provide a comprehensive view of the tire's overall performance capability. Utilizing a tire depth gauge can be an appropriate tool, but this option alone doesn't indicate the specific area of measurement. Focusing solely on the center of the tire tread may neglect the worn areas typically found around the edges, leading to an inaccurate assessment of the tire's overall condition. Hence, measuring across any two adjacent major grooves is the most effective practice to ensure safety and performance.