Originally Posted by
Alupang
Interesting but I like the feeling of a waxed chain--so silky smooth and quiet. Plus I get a nice buildup of wax on my expensive Dura Ace crankset rings I figure it helps reduce wear. WD40 gives off a strong solvent smell and my bike sits in my living room so not for me. I would imagine it's cleaner than oil though--interesting idea.
As I understand it, WD40 is largely kerosene or something very similar - it might be good for some applications like displacing water but probably not a very suitable lube for bike chains.