Oil WD40 bikeline wet lube
Oil WD40 bikeline wet lube WD-40 recommends this Bike All Conditions Lube 'for chains, derailleurs, pivot points, cables and shifters'. In other words, everything on your bike that moves against something else. Ignoring the last four, because it's impossible to measure its performance against any other spray aerosol product, I've focused on the chain. Here, it's moderately effective, but really no different to other spray lubricants, and works out quite expensive because you have to keep applying.