How effective is using WD-40 on a bike chain for lubrication and maintenance?

Using WD-40 on a bike chain for lubrication and maintenance is not very effective in the long term. While it may provide temporary lubrication, WD-40 is not designed specifically for bike chains and can attract dirt and grime, causing the chain to wear out faster. It is recommended to use a lubricant specifically made for bike chains for better performance and longevity.