I've mentioned before my fascination with the strange juxtaposition of seeing someone riding a bike in high heels. You have to applaud the dedication to the cause of heel wearing when they are used in such inappropriate circumstances. Here's another example found by Mrs P in a magazine, along with a public health warning about the possible side effects of cycling.
[Sorry about the white space. I added that so flickr would centralise the thumbnail on the photo without cropping the text.]