Well, I love this picture. Don't know why, but "it just works" for me. The 2 diagonals of the aligned saddles and aligned handlebars does the trick, with just enough variations of shapes and position to keep the eye "interested" over the sea of frame tubes.
That's the magic of b&w, to produce interesting images based on juxtaposition of look alike shapes where real life scenes look confuse because of the discrepancies of colors. B&W in those cases works like a tool to reveal fortuitous hidden structures in a seemingly chaotic world.
I think it blends right with the human brain, as I read somewhere that our mind is in fact almost wired to detect such structures out of nowhere (for instance, humanity has always grouped and classified stars in the night sky based on look, trying hard to find order and structure there, long before we had the tools to know how far apart some of those stars really are. We do that for about every pattern we stumble upon.)
Cheers,