It's funny to me, because I have a very strong spacial sense, and a lifetime of riding bikes. To the limit of my ability to draw, I can draw a flawless bicycle, down to the interlocked path the chain takes and the hanger on the derailleur.
I ride a recumbent trike, and the chain path is even more grotesque. I think I could draw it.
I ride a recumbent trike, and the chain path is even more grotesque. I think I could draw it.