What minimum tire tread depth should the front tires meet?

The minimum tire tread depth for front tires is crucial for maintaining adequate traction, particularly under wet or slippery conditions. In Ontario, the legal requirement for the minimum tread depth on commercial vehicles is typically 3.0 mm for the front tires.

Having sufficient tread depth allows the tires to effectively channel water away from the contact patch, reducing the risk of hydroplaning and providing better grip during acceleration, braking, and cornering. This is especially important for front tires, as they bear the majority of the steering and braking forces. A depth of 3.0 mm strikes a balance between safety and performance, ensuring that tires can function effectively over a range of driving conditions.

Other depth requirements mentioned are either below or above the standard, making them less applicable for ensuring optimal performance and safety during operation. Therefore, 3.0 mm stands out as the appropriate threshold to ensure vehicle safety and compliance with regulations.