Why WD-40 is not good to use on a bicycle chain?

WD-40 was developed by the military in the 50s as a solvent / remover in preventing rust and de-mechanic to protect missile parts. WD-40 quickly became household goods when people find a thousand other uses as cleaning, rust prevention, squeak-stopper and more. It also works wonders as a light lubricant on small items such as hinges, locks, and toys.

Bicycle chains, on the other hand, too heavy and moving quickly to force lubricant WD-40 to have any effect at all. In fact the WD-40 will actually remove any lubricant that is dry and leave your drivetrain - metal on metal. Basically, you spray on the chain is worse than not using a lubricant at all!

Obviously, it is advisable to use chain oil purchased from your local bike shop. Just go there and ask them to ordinary chain oil waterproof. There should be no more than 10 or 12 dollars, and that's the best you can buy for your bike.

Tags: WD-40, Lubricant, Chain, Bike