Pro4 Endurance 700x25 Flex Bead Road Bike Tyre Pack / ETRTO 25-622

How to measure tyre wear

To measure the wear on your road tyres and to know when they need replacing, you need to inspect the tread. Signs of wear include:

- tread starting to fray

- the appearance of a series of micro cracks

- low tread depth

- the carcass becomes visible.

In all these cases the tyre is worn and needs replacing.

How to remove a tyre

To remove your tyre, deflate the inner tube until no more air comes out.

Then separate the tyre from the rim with a tyre lever.

How to fit a tyre

To put the tyre back on, insert one side of the tyre into the rim. Next, inflate your inner tube to approximately 30% before putting it into the tyre (inflating it beforehand reduces the risk of pinching the inner tube).



Then, insert the other side of the tyre into the rim, starting on the side opposite the valve. Before inflating the inner tube all the way, check to make sure it isn't pinched between the tyre and the rim.

How to inflate your tyre correctly

During inflation, it is important to obtain the right pressure depending on the terrain and especially depending on the weather.

If you ride in rainy weather, feel free to lower the tire pressure to increase its grip.

When riding in dry weather, you can increase the pressure for better performance.