A bicycle-rider is a tricky kind of arrangement of tubes and wheels and legs that people find hard to remember and visualise... so the drawings are often naïve and vigourous.
What did Kandisnsky say?
"A naïve rendering of an objects outter shell will reveal a greater truth about that object".
Or words to that effect.
This one was drawn by my Mum.
How do you like those wheel clearances, you track fiends?
(pity about the rip... I quite like this one and now we'll never know how she resolved the handle bars)