What is the minimum tire tread depth required for a steering wheel with a GVWR of 4500kg or more?

The minimum tire tread depth required for a steering wheel on vehicles with a Gross Vehicle Weight Rating (GVWR) of 4500 kg or more is 3 mm. Adequate tire tread depth is crucial for maintaining traction, especially in adverse weather conditions. With a depth of 3 mm, the tires can effectively channel water away and reduce the risk of hydroplaning, which is essential for safety during braking and cornering. Additionally, proper tread depth helps ensure better handling and stability, allowing drivers to maintain control of the vehicle.

While other depths listed may seem adequate, they do not meet the specific regulatory requirements for vehicles of this weight class. Therefore, 3 mm is the minimum depth mandated for steering tires on heavier vehicles to ensure sufficient performance and safety on the road.