Feedback in the New Scientist had an ongoing discussion about anachronistic sounds and icons, such as digital cameras that make a noise that imitates mechanical shutters, and "save" buttons bearing pictures of floppy discs. I think they coined a witty name for it, but I can't for the life of me remember.
For bikes, of course, the solution already exists in
Trotify "The leading bike-horse hybridiser in the world"