How to tell if your tires have reached the end of their useful life (The tread test)

Many drivers wait until their tires are completely smooth before considering a replacement, but the reality is that safety performance diminishes much sooner. At mantallanta.com, we want to teach you how to identify critical signs of wear so that you never compromise your safety or that of your family.

1. The TWI (Tread Wear Indicator)

If you look closely at your tire grooves, you will see small transversal rubber bars located at the bottom of the main channels. These are the wear indicators.

• If the tread surface reaches the same level as these bars, the tire has reached the legal limit of 1.6 mm depth. At this point, the tire must be replaced immediately.

2. The Coin Test

A homemade but effective method in Ecuador is to use a one-cent coin:

• Insert the coin into the tire groove with the figure's head facing down.

• If you can see the top of the figure's head completely, it means the tread is insufficient (less than 3 mm) and the ability to evacuate water in the rain is almost zero.

3. Visual Warning Signs: Beyond the Tread

Sometimes, a tire has good tread but is no longer safe. Check for:

• Cracks or "dry rot": Common in cars that spend a lot of time in the sun or are used infrequently.

• Bulges or bumps: Indicate an internal rupture of the structure (plies) due to an impact or pothole. This is a "time bomb" that can cause a blowout.

• Irregular wear: If one side is more worn than the other, you need a replacement and an urgent alignment.

Why not wait until they are smooth?

A tire with shallow tread dramatically increases braking distance and loses the ability to prevent aquaplaning (when the car floats on water on the road). In a country with heavy rains like Ecuador, having deep tread is the difference between a scare and an accident.

Safety and confidence with Mantallanta

At mantallanta.com, we want every customer to have complete purchase information and the tools to decide the right time for their renewal. This information is transparently provided by mantallanta.com because we seek to educate and resolve technical doubts that protect your life. At mantallanta.com, we are committed to offering you not only the best online inventory in Ecuador, but also the knowledge to always drive with complete peace of mind.