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Foot pedals for bicycle

Foot pedals are a system that allows the fixed connection of cycling shoes, so-called "treters", to the pedal. Unlike conventional flat pedals, where the shoe is only loosely placed on the pedal, here it is mechanically locked in place. The connection is made by a small metal or plastic part, known professionally as a 'trunk', which is attached to the sole of the tread. This trunk snaps into a special lock directly in the pedal, which is functionally similar to the binding on skis. To release the foot, simply turn the heel sideways, which opens the mechanism and the foot can be removed from the pedal. The main benefit of this system is a more efficient transfer of force. As the foot is firmly connected to the pedal, the cyclist can not only push downwards on the pedal but also pull upwards in the second phase of the revolution. This results in smoother, so-called "round pedalling", which engages more muscle groups and increases power output. The tight connection also ensures that the foot is always in the right position and cannot slip off the pedal, which increases confidence and control over the bike, especially on more challenging terrain or when riding fast. There are different types of pedal systems, which vary according to the intended use. For mountain and trekking cycling, systems with smaller boot recessed in the sole are commonly used, allowing for a more comfortable walking experience. Conversely, for road cycling, systems with larger trunks are typical, which provide a larger contact area for maximum power transfer, but are more difficult to walk in.

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