Fietstrappen

Fietstrappen are the pedals of a bicycle, the interface through which a rider applies force to rotate the crank and drive the bicycle via the drivetrain. They are mounted on the crank arms and rotate on bearings, translating leg movement into rotational motion. Pedals come in a variety of designs to suit different riding styles, shoe types, and security preferences.

Common types include platform pedals, which offer a flat surface for the shoe and are widely compatible; and binding systems such as toe clips with straps or clipless pedals that secure a compatible shoe to the pedal. Platform pedals may feature grip surfaces or reflectors, while clipless systems rely on a mechanism to retain the shoe when engaged. Materials range from plastic and aluminum to steel, with some high-end models using carbon fiber.

A typical mechanical detail is the pedal thread, which determines compatibility with crank arms. Most modern pedals use a standard right-hand thread on the right pedal and a reverse (left-hand) thread on the left pedal, meaning the right pedal is tightened clockwise and the left pedal tightened counterclockwise. Some older or smaller bikes may use different thread sizes, such as 1/2 inch, but 9/16 inch is common for contemporary models.

Pedaling technique aims for a smooth circular motion that uses both downward and upward forces to maximize efficiency and minimize knee stress. Clipless pedals can improve efficiency by enabling a fuller pedal stroke, but they require practice to clip in and out safely. Regular maintenance includes checking for play, inspecting bearings, ensuring proper cleat engagement, and replacing worn pedals or damaged threads as needed. Proper installation and regular cleaning help prevent injuries and prolong pedal life.