Choosing an inner tube
Check all the information indicated on the sidewall of the tire (diameter and width).
For example, 26 x 2.20 means your tire is 26 inches in diameter and 2.20 inches wide.
You will also find the dimensions in mm in international ETRTO measurements. For example, 50-559 means the tire is 50 mm wide with an inner diameter of 559 mm (approx. 26 x 2.00 inches).
Removing an inner tube
Remove the old inner tube using B'Twin tire levers (ref. # 8047839).
Checks to carry out before installing an inner tube
Check the condition of your tire and replace it if necessary.
Make sure no objects are lodged in the tire.
Check the condition of your tire rim strip. A rim strip that is even slightly bent can cause punctures.
Check that your rim does not have any other issues that could damage your inner tube.
Mounting the inner tube
Pre-inflate the inner tube slightly to avoid pinching.
Insert the valve, making sure you are using the correct valve for your rim.
Put the inner tube entirely inside the tire so that it fits inside the rim.
Take care not to pinch the inner tube when mounting.
Mounting the tire
Start by mounting the tire onto the wheel on the side opposite the valve.
Finish mounting the tire at the valve to avoid pinching the inner tube.
Never mount your tire using a screwdriver or a tire lever as you risk pinching and puncturing the inner tube.
Inflating the tire
Inflate your tire carefully to the pressure recommended by the manufacturer (visible on the sidewall of the tire in PSI or bars; 1 bar = 14.51 psi).
Regularly check that your tire is in the correct position as you inflate it.
Tip from the pros
To avoid punctures due to the inner tube being pinched and to get the best performance out of your tire, we recommend checking your tire pressure and inflating it if necessary before each ride.