Virtually all bicycles use a chain and wheel combination to transfer power from the pedal crank to the wheel. There are alternative mechanisms to transfer power, of course, but these are not widely used. The chainwheel, also called a chainring, is a type of sprocket, or toothed wheel. (Remember Spacely Sprockets from the Jetsons?) I see all sorts of bicycles as I go walkabout in the city and many are highly customized. (Few, however, approach what the Black Label Bike Club and the other NYC bicycle clubs do. If you've seen the tall bikes around, you know what I mean.)
What I find so interesting is the artistic creativity shown in the numerous chainwheel and chainring variations. There is, of course, a whole continuum of design tradeoffs, including weight, strength, cost, and safety. My interest, however, is simply in the elegance of design and mechanical items as art. Having seen these collections I find myself sated. For some, however, interest changes into, well, a borderline obsession.
Joel Metz just can't get enough of chainwheels, whether they are the silhouettes he collects on paper or on his very skin:
i havent yet decided what the plan is once my arm is entirely filled with as many black chainwheel silhouettes as it can hold without overlap. granted, this is a good ways off, but... i have considered a background of some kind - perhaps a second layer of silhouettes, in deep red, "underneath" the black ones... or i may come up with something else, or even just leave it as is. a lot will depend on how the sleeve looks once its all filled, and theres no more room for further chainwheels in black - i doubt ill be able to decide what to do next until that point.Joel Metz's Chainwheel Tattoo Project