I have always wanted to make artwork, useful or not, out of old or broken parts from bikes. I’m not quite sure why but I really like the look of rotors, cassettes, hubs, wheels and cranks; probably more than complete bikes or beautiful frames. There seems to be so much effort put into their design (although some have pretty crap design) and manufacture. Combined with the effort to extract and refine the metal to make the intricate parts, my heart pangs a little seeing them in the…