Why a bicycle tube overfilled with air may burst?

A bicycle tube overfilled with air may burst due to excessive internal pressure. When a tube is inflated, the air inside it exerts pressure on the inner walls of the tube. As more air is pumped in, the pressure increases. If the pressure exceeds the tube's maximum承受能力, the tube will eventually burst.

The amount of pressure a tube can withstand depends on several factors, including its material composition, thickness, and size. Thinner tubes can withstand less pressure than thicker tubes; the same applies to tubes made of weaker materials. Additionally, smaller tubes have less volume and can therefore hold less air before reaching their pressure limits.

When a tube is overfilled, the pressure inside it can become too high for the tube's material to withstand. This can cause the tube to bulge, deform, or even tear, leading to a sudden release of air and a burst tire.

To prevent tube bursts, it is crucial to inflate bicycle tires to the recommended pressure, which is usually indicated on the tire's sidewall. Exceeding this pressure can not only damage the tube but also compromise the safety and handling of the bicycle.