Breaking a tire bead refers to the process of separating the tire from the rim of a wheel. This is typically done when replacing a flat tire or when mounting a new tire on a wheel. There are a few different methods for breaking a tire bead, but the most common and effective method is to use a tire bead breaker machine.
Tire bead breakers are designed to apply a controlled amount of force to the tire bead, causing it to break free from the rim. This can be a difficult task to do manually, as the tire bead is often very tight against the rim. However, a tire bead breaker machine can make the process much easier and safer.