=I like to try to dry my bike with the draft of an electric fan. The poor bottom bracket. The headstock bearings. : (
=We must realize, that once a bike is wet-down, it is soaked in places inaccessible to the blast of any fan.
=It is perhaps best to not water soak most bikes unless required by a rainstorm.
=A damp cloth may be best, but, heck, it is only a bike, and is supposed to be "mortal", right?
=I like Pledge like many others, for a quick-clean between wet-wipe-downs (don't rub!) with a microfiber cloth.
=For the chain, for about a thousand miles now, all I use on my singlespeed chain is PB Blaster "dry lube" (PTFE/'teflon).
It gets applied by a small paint brush, and is not waterproof, but it is absolutely clean (the wiping rag never turns black anymore).
And chain "stretch" seems to be nearly totally stopped. The truly-dry-lubed chain seems to work just ideally for casual, dry-road cycling.
=The chain, OEM, on my Trek Lime, is nickel plated. Nickel is a fascinating metal, in that it is largely self-lubricating. For engineering work,
nickel plate prevents metal from galling. It is an ideal metal finish for bike chains, and I wish more chains were available in nickel plate for this reason;
it is much better, I think, than a black-oxide finish. Nickel confers a nice appearance, yes, and also some added rust resistance,
especially if the chain is waxed, oiled or "Teflon" treated (tm), though "PTFE" ("Teflon", TM) cannot offer the corrosion protection of an oil,
it's good enough, in my experience, on a nickel plated chain, on a bike given a modicum of care: I like to put the wet bike in the draft of a fan,
to try to beat the (corrosion) band. In this way, the wet chain is quickly dried in a few hours at most. I flip my cruiser bike and then paint the chain with PB-brand
(The Home Depot sells it cheap enough, spray can, yellow) The Dry Lube (I think it's called). PTFE is a white, waxy-feeling plastic substance, inert and non-toxic,
if not exposed to flame-heat. It is not dangerous to human health at all, if you don't burn it, and has been around for over sixty years now. Just wash hands, like always.