Sparco pedals how to fit

Know-how: Everything you should know about pedals

Why clipless pedals?

System pedals were invented by Look in 1984 based on the model of ski bindings, initially for road cycling, where they replaced hook pedals. But mountain bikers too have long since benefited from a constant position of the shoe, which, when correctly adjusted, ensures optimum power transmission and prevents incorrect loads. In addition, the binding prevents the shoe from slipping on rough trails. Jumping over small obstacles, the so-called "pig hop", is easier even without perfect driving technique. Originally, however, they were developed for a stronger push and pull phase when pedaling, which should allow a more even pedaling movement, a "round step".

How does the round step work?

Experts know: it doesn't exist! Or rather, a circular step would not be efficient. While the feet perform a circular movement while biking, analogous to the rotation of the crank, the introduction of force into the rotating crank arms occurs all around with different intensities and in four different directions. The "round step" is more like a lying egg - because the biker generates the highest propulsion when he applies the greatest possible force to the pedal in the pressure phase when stepping down the crank. At the same time, the other leg exercises the lifting phase, in which the dead weight of the legs has to be overcome. This is where the difference between professional and hobby biker becomes obvious: While the professional lifts the legs evenly through targeted training, the inexperienced hobby rider steps against the weight of the legs and thus generates braking forces. In the pictures you can see which forces are at work in the different pedaling phases and where the greatest potential for more speed and propulsion lies dormant.

Cleats with or without freedom of movement?