Why does the tread on your bike tires wear down over time?

The tread on bike tires wears down over time due to a combination of factors such as friction with the road surface, the weight of the rider, and the type of terrain being navigated. As the tire rolls, the rubber compounds in the tread gradually wear away, especially during sharp turns or braking. Environmental factors like temperature, humidity, and exposure to UV light can also contribute to tread degradation. Regular maintenance and timely replacement are essential for optimal performance and safety.