How much tread must a front tire have to be considered safe?

For front tires to be considered safe, they should have a minimum tread depth of 3 mm. Adequate tread depth is crucial because it provides the necessary traction for steering and braking, especially under wet or adverse conditions. If the tread is worn down to or below this level, the tire may not perform effectively, increasing the risk of hydroplaning and reducing overall vehicle control.

The specified minimum of 3 mm balances the need for safety and performance, ensuring that enough tire surface remains to channel water away and maintain grip on the road. Understanding tire maintenance and tread depth can significantly enhance safety while driving.