**Tires in good condition** are essential for effective braking. This is because the **tread** of the tires, which is the part in contact with the road, must have grooves at least 1.6 millimeters deep. These grooves allow the tire to grip the ground better, which is crucial for efficient braking, especially in rainy conditions, as they help to remove water from the road.

Additionally, the condition of the tires is one of the technical factors of the vehicle that influences the **braking distance**. A worn or poorly maintained tire can increase the distance the vehicle needs to come to a complete stop, which increases the risk of accidents.

Therefore, keeping tires in good condition not only improves ground grip but also reduces braking distance, making the vehicle safer when braking.