The main advantage of clipless pedals is that they allow the rider to have more control and a more efficient power transfer when pedaling. The main disadvantage is that they require the rider to wear specific shoes designed to clip into the pedals, and they can be difficult to disengage in a hurry. Flat pedals offer more versatility because they can be used with any type of footwear, but they do not provide the same level of power transfer as clipless pedals.