Another controversial topic. Many people advise against using WD-40 on bicycle chains but there are many people that say it’s absolutely ok. WD-40 is a solvent containing a very light lubricant. Lots of cyclists don’t like the idea of using this product on their bikes because it only leaves a light lube on your chain. WD-40 loosens dirt and grime and acts as a degreaser, it then leaves a fine film of lubricant behind. So fine that many cyclists believe that the lubricant is too fine and not thick enough to stick to fast moving bicycle parts. We believe that it is safe to use WD-40 as a cleaner and degreaser but you will need to follow this up with specific bicycle lubricant which has been designed to have a stronger hold on moving bicycle parts.