A bicycle drivetrain system characterized by a direct connection between the pedals and the rear wheel defines a particular style of cycling. This setup ensures that the pedals are always in motion whenever the rear wheel is turning, and conversely, the rear wheel’s rotation is directly governed by the pedals. Braking is often achieved through resisting the rotation of the pedals, as there is no freewheel mechanism allowing the rider to coast.
The simplicity and directness of this mechanical arrangement offer advantages in terms of weight reduction, mechanical efficiency, and a heightened sense of connection with the road. Historically, this type of bicycle was prevalent on velodromes for track racing, where constant pedaling is a requirement. Its adoption by urban cyclists stems from its robustness, low maintenance requirements, and the unique riding experience it provides.
