What is the minimum tread depth for a rear tire to be considered safe?

The minimum tread depth for a rear tire to be considered safe is 1.6 mm. This measurement is crucial for ensuring adequate traction and stability while driving, especially in wet or slippery conditions. Tires with tread depths less than this threshold can lead to decreased performance and increased risk of hydroplaning during rainfall, as they are less capable of channeling water away from the tire-road interface.

Maintaining tires above this depth contributes to safer driving conditions, as tires with proper tread help to improve grip and control of the vehicle. Therefore, regularly checking tire tread depth is essential for vehicle maintenance and safety.