Bikes, hard to draw

The BBC has an article by Matthew Phenix about an Italian, drawing:

Back in 2009, Gianluca Gimini picked up an unusual hobby. The Bologna, Italy-based Italian-American designer started approaching his friends (and complete strangers) and asking them to draw a bicycle from memory. (For the sake of continuity, Gimini requested that each artist sketch a man's bike). Easy, right? Well, not so much. Turns out this seemingly simple task was anything but; for all their mechanical purity, bikes have a fair number of moving parts, and even that familiar form (the shape of modern two-wheeler dates to the 1880s, after all), proved dauntingly difficult to render by heart, particularly in the two minutes Gimini gave his artists to complete their masterpieces.
"Some did get close," he says. "some actually nailed it perfectly, but most ended up drawing something that was pretty far off from a regular man’s bicycle."
As his collection grew, Gimini noticed some themes: "Nearly ninety percent of drawings in which the chain is attached to the front wheel (or to the front and rear) were made by females. On the other hand, while men generally tend to place the chain correctly, they are more keen to over-complicate the frame when they realize they are not drawing it correctly."
By 2016, the pile had grown to nearly four hundred drawings, from a broad array of participants from seven different countries, males and females, as young as three years and as old as ninety. He decided to begin creating highly polished renderings of these sketches, and the results, six of which you see above, are equal parts brilliant, hilarious, and frightening."A single designer could not invent so many new bike designs in a hundred lifetimes," says Gimini, "and this is why I look at this collection in such awe."
So do we.

Rico says go there to see the rest...