A practical guide on tire wear: how to evaluate it?

A change of season also means a change of tires. But how do we know if our tires are still safe or too worn? To evaluate the degree of tire wear, know that there are several simple things you can do yourself at home.

Although the tires have an average lifespan of about 30,000 km, it is strongly recommended inspecting them regularly for wear. If the tread has a thickness equal to or less than 1.6 mm, then it is time to buy new tires, because the ones you have no longer have the necessary grip to ensure safe travel.

Tire Wear: Indicator and Evaluation

To properly evaluate these at the beginning of the season, we recommend that you first read the wear indicators, which are in fact small square lumps, present in the grooves of your tires. If you notice that the tread is at the same level as the wear indicator, i.e. 2/32 inches or 1.6 mm, then it is imperative to purchase new tires.

Always keep in mind that for your tires to be effective, they must have a tread of 6/32 inches (4.8 mm) in thickness. Without this, they will unfortunately not last a full season. In addition, wanting to use your tires up to the “cord” is not only a dangerous maneuver, but it could also represent additional costs due to the installation costs that will be added to your regular tire replacement.

25 Cents Test

You do not find the wear indicators on your tires and you do not want to spend money to get a depth gauge? Then know that there is a simple trick that requires no tools other than a 25-cent coin.

Take 25 cents and insert it into one of the grooves of your tire, caribou muzzle down. If you can see the muzzle of the caribou, then your tire is no longer 4.8 mm and you will need to change it. Fast, simple and effective!


Although tire wear is inevitable, there are still various ways to reduce premature tire wear. As a first step, be sure to maintain adequate air pressure in each of your tires. Also, consider balancing and swapping them every 10,000 km to ensure even wear. When it’s time to do the swapping, do not forget to rotate the front and back tires on the same side. Alignment is also important not only for optimal driving but also for the durability of your tires.

Professional Service

When you change your tires, do not hesitate to ask your car mechanic for advice. At Trans-Mico, our professional mechanics will be happy to answer all your questions and check the condition of your tires to ensure optimal and safe driving.