In the center of Puerto del Rosario, right here, have placed some “bicycle parkings”. They are recognized vaguely by their appearance, not by ever see a bike parked there.
No deep analysis is required to realize that they are worse than useless: harmful. To design a bicycle parking must first understand the bike. Still, I went to try and document:
¡Que bonita queda en la foto! Pero es mentira, tiene trampa: la bicicleta está apoyada en su pata, justo por el otro lado detrás de los pedales. Si le quitara la pata, o si alguien la inclinara hacia la derecha (no hace falta que le hicieran fuerza), destrozaría la rueda. Aquí tenéis un detalle (pinchad la imagen para verla mas grande):
It looks so beautiful in the picture! But it’s a lie, I made a trick: the bike is resting on his kickstand, on the other side just behind the pedals. If the kickstand is removed, or the bike is inclined to the right (no need force it), the wheel would be destroyed. Here’s a detail (click on the image to see it larger):
Look at the strength that are resisting a few spokes, which are loaded to an edge of concrete and must bear the full weight of the bike!
Seriously: the “designer” who did this should google “lever arm” and learn a little. “Concrete chunk with a slot in the middle” is not enough to consider it a bicycle parking.