There are generally two main types of bike pedals: Flat Pedals that are simple pedals with a flat surface where the rider's feet rest. They do not attach to the rider's shoes, allowing the rider to wear regular shoes or any footwear they prefer. Flat pedals are commonly used in casual riding, mountain biking, and BMX biking. They offer ease of use and allow the rider to quickly put their foot down on the ground when needed. Clipless Pedals that clip into the rider's cycling shoes into the pedals. This type of pedal offers a more secure connection between the rider's feet and the bike. When clipped in, the rider gains the ability to pull up on the pedals during the upstroke of the pedal rotation, maximizing efficiency and power output. Clipless pedals are popular among road cyclists, mountain bikers, and many other cycling enthusiasts.