An old adage said: “who does not know invent” and this is precisely what happens with regard to the positioning of the cleat under the shoe.
First of all it is good to define the objective that consists in positioning the axis of the pedal exactly at the point of balance of the foot.
How to find the balance point of the foot?
Technically it corresponds to the line orthogonal to the longitudinal axis of the foot, at the midpoint of the circle arch formed by all the heads of the metatarsal bones.
In simpler terms, just behind the head of the first metatarsal.
Even if this concept, more or less, is known by all the operators in the sector, it remains the big problem of how to identify this point on the sole of the shoe to align the cleat and consequently the pedal axis.
And it is precisely in this operation that the most imaginative solutions are given free rein.
In reality, the solution is much simpler than we think it is enough to reflect on what we have available.
The most common errors are:
- Measure the position of the cleat starting from the outer perimeter of the shoe, the shoes often have plastic or leather inserts that alter the external dimensions of the shoe
- Measure the cleats starting from the base or the apex, in the current cleats on the market the pedal axis goes to a different point model by model
- Detect the first metatarsal with the foot slipped into the shoe but with the foot resting on the heel, the foot when it is in support of the avampodalic stiffens and shortens.
The correct system is:
- detect the measurements of the foot and, through a simple algorithm, identify the distance from the heel of the equilibrium point;
- return the distance on the shoe starting from inside the heel of the shoe
- identify on the model of the cleat in use where the pedal axis passes
- make the point of balance of the foot identified on the sole of the shoe coincide with the axis of the pedal identified on the