Question image

Question 4355

Tires must be replaced whenever...

  1. the tread depth is less than 3 millimeters.
  2. the tread depth is less than 1.6 millimeters.
  3. the tread depth is less than 2 millimeters.
Show answer and explanation

Correct answer: the tread depth is less than 1.6 millimeters.

On a passenger car, the main tread grooves must be at least 1.6 mm deep. If they fall below that depth, you must replace the tire. Neither 2 nor 3 mm is the legal minimum, although replacing it at around 2 mm is a good idea. In the image, a driver is measuring the tread depth.

Real Decreto 2822/1998, de 23 de diciembre, por el que se aprueba el Reglamento General de Vehículos