What are the different types of bicycle tire valves and how do they differ from each other?

There are two main types of bicycle tire valves: Schrader and Presta. Schrader valves are wider and more common, found on most bikes and cars. Presta valves are narrower and lighter, often used on high-performance bikes. The main difference is in their size and the way they are inflated - Schrader valves require a pump with a larger opening, while Presta valves need a pump with a smaller, threaded opening.