What are the differences between a double and triple crankset in terms of performance and functionality?

A double crankset has two chainrings, while a triple crankset has three. The main difference in performance is that a triple crankset offers more gear options for climbing steep hills, while a double crankset may provide a smoother shifting experience. However, a triple crankset can be heavier and more complex to maintain. Ultimately, the choice between the two depends on the rider's preference and the type of terrain they will be riding on.