Keeping a chain lubed and clean is a huge step towards an efficient and long lasting drive train. And it seems relatively straight forward to lube a chain, does it not? But the devil is in the details and many compounds that would keep a chain slippery are also an unholy mess that gets over all everything and actually attracts dirt like a magnet. That mess also gets all over you. Know what a chainring tattoo is? Inside, right calf muscle.