How can I effectively use WD40 on my bike to prevent rust and improve its performance?

To effectively use WD40 on your bike to prevent rust and improve performance, first, clean the bike thoroughly to remove any dirt or grime. Then, apply WD40 to the metal parts of the bike, such as the chain, gears, and bolts, to create a protective barrier against moisture and rust. Make sure to wipe off any excess WD40 to prevent attracting more dirt. Regularly reapply WD40 to maintain protection and keep your bike running smoothly.