What we’re perhaps less used to seeing is a clock that uses chains and sprockets, and that looks more like what you’d find on a bicycle on your typical bicycle. We can’t recall seeing ...

A crank sprocket drives two intermediate sprockets above it, from where two chains drive a bank each. Other layouts are possible, such as the main chain(s) driving only a single camshaft per bank ...

For instance, upgrading derailleurs, sprockets, and chains can be fun ... the likelihood of this happening is much lower than that of a chain drive. Conversely, chain systems are easy to fix ...